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HomeMy WebLinkAbout19920050 Ver al_Complete File_19921027sp 40 DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 October 27, 1992 IN REPLY REFER TO Regulatory Branch SUB=: ACTION ID: 199203427 and Nationwide Permit No. 23 (A *woved Categorical Exclusions) North Carolina Department of Transportation Division of Highways AMN: Mr. D. K. Bennett Asst. District Engineer Post Office Box 250 North Wilkesboro, North Carolina 28659 Dear Mr. Bennett: Reference is made to your letter of October 6, 1992, regarding your plans to discharge dredged/fill material into the waters/wetlands of two unnamed tributaries of the Yadkin River, associated with the construction of an additional "northbound" 12 foot lane along the north side of the project length on US 421 west located at the intersection of US 421 Bypass and US 421 Business, North Wilkesboro, Wilkes County, North Carolina, TIP No. W-2817, State Project No. 8.7376002. Plans included with your letter showed that the project will cross two unnamed tributaries to the Yadkin River. Pipe extension will be required at one location. Reference is also made to Mr. Joe Mickey's letter of October 9, 1992, in which the North Carolina Wildlife Resources Commission expressed no objections to the planned road improvements provided that: a. No heavy equipment is operated in the live streams in order to minimize sedimentation and prevent introduction of other pollutants, and b. Erosion control measures should be in>plemented where soil is disturbed and maintained until project omipletion. For the purposes of the U.S. Army Corps of Engineers" Regulatory Program, Title 33, Code of Federal Regulations (CPR), Part 330.6, published in the Federal Register on November 22, 1991, lists nationwide permits. Authorization, pursuant to Section 10 of the Rivers and Harbors Act of 1899 and Section 404 of the Clean Water Act, was provided for activities undertaken, assisted, authorized, regulated, funded orarfimrxmd, in whole or in part, by another Federal agency or department where that agency or t 1,* -2- department has determined, pursuant to the CDQ Regulation for the Implementing the Procedural Provisions of the National Ewixnniwtal Policy Act, that the activity; work or discharge is categorically excluded from envirornmerital documentation because it is included within a category of actions which neither individually nor cLmulatively have a significant effect on the human environment, and the Office of the Chief of Eng?inxeers has been furnished notice of the agency's or department's application for the categorical exclusion and concurs with that determination. Special regional conditions of this nationwide permit state that before discharging dredged or fill material into waters of the United States occurring within the 25 mountain counties of North Carolina that Contain trout waters, the applicant will obtain a letter of approval from the North Carolina Wildlife Resource Commission. Review of the information you have provided, and the comments submitted by the North Carolina Wildlife Resources Commission, reveals that your proposed work, is authorized by nationwide permit provided it is accomplished in strict accordance with the enclosed conditions and the recommendations set forth by the Wildlife Resources Commission. This nationwide permit dose not relieve you of the responsibility to obtain any required State or local approval. Your work is authorized by this nationwide permit provided it is accoaplished in strict accordance with the enclosed conditions. This nationwide permit does not relieve you of the responsibility to obtain any required State or local approval. This verification will be valid for 2 years fram the date of this letter unless the nationwide authorization is modified, reissued, or revoked. Also, this verification will remain valid for the 2 years if, during that period, the nationwide permit authorization is reissued without modifcation or the activity Complies with any subsequent modification of the nationwide permit authorization. If during the 2 years, the nationwide permit authorization expires or is suspended or revoked, or is modified, such that the activity would no longer Comply with the terms and conditions of the nationwide permit, activities which have ccuuenced (i.e., are under construction) or are under contract to Camienoe in reliance upon the nationwide permit will remain authorized provided the activity is cmPleted within 12 months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case-by-case basis to modify, suspend, or revoke the authorization. w • M -3- Thank you for your time and cooperation. If you have any questions, please contact Mr. Jahn Thomas, Raleigh Regulatory Field office, telephone (919) 876-8441. Sincerely, G. Wayne Wright Chief, Regulatory Enclosure Copies Furnished wo/Enclosure: Dr. Charles Brouton North Carolina Department of Transportation Planning and Research Branch Post Office Box 25201 Raleigh, North Carolina 27611 Mr. Doug Miller Land Quality Section North Carolina Department of E nviroaz ent, Health and Natural Resources 8025 North Point Boulevard Suite 100 Winton-Salem, North Carolina 27106 Mr. John Parker North Carolina Department of Ehvircrnnent, Health, and Natural Resources Post Office Booc 27687 Raleigh, North Carolina 27611-7687 Mr., John Dorney Water Quality Section Division of Dwiroamental Management North Carolina Department of &wirotment, ?. Health, and Natural Resources Post Office Boot 27687 Raleigh, North Carolina 27611-7687 Or `.0 -4- Regional Office Manager North Carolina Department of Phvirorment, Health, and Natural Resources 8025 North Point Boulevard Suite 100 Winston-Salem, North Carolina 27106 Mr. Dennis Stewart Habitat Conservation North Carolina Wildlife Resources Ccumission 512 North Salisbury Street Raleigh, North Carolina 27611 Mr. Joe Mickey, Jr. Division of Boating & Inland Fisheries Route 2 Box 278 State Road, North Carolina 28676 e ?y ti .aa? IANN ,M.fa? ?Ja 4etr:vr.aaaa`a STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION P.O. BOX 25201 RALEIGH 27611-5201 JAMES G. MARTIN GOVERNOR THOMAS J. HARRELSON SECRETARY August 26, 1992 District Engineer Army Corps of Engineers P. 0. Box 1890 Wilmington, North Carolina 28402 ATTENTION: Regulatory Branch Dear Sir: T 0 R@6 0W, iI S E N- I Iqq? (J I-1 N-1 - DIVISION OF HIGHWAYS WILLIAM G. MARLEY, JR., P.E. STATE HIGHWAY ADMINISTRATOR SUBJECT: Categorical Exclusion Approval for Federal Aid Project: Wilkes County, US 421 from US 421 Business to 0.10 Mile West of SR 1323 (Dancy Road), West of Wilkesboro, State Project Number 8.7376002, Federal Aid Number HESF-86-2(32), T.I.P. I. D. Number W-2817 Attached for your information is a copy of the project planning report for the subject project. The project is being processed by the Federal Highway Administration as a "Categorical Exclusion" in accordance with 23 CFR 771.115(b). Therefore, we do not anticipate requesting an individual permit but propose to proceed under a Nationwide Permit in accordance with 33 CFR 330 Appendix A (B-23) issued November 22, 1991, by the Corps of Engineers. The provisions of Section 330.4 and Appendix A (C) of these regulations will be followed in the construction of the project. We do not anticipate that a permit will be required from the North Carolina Department of Environment, Health and Natural Resources for this project. If you have any questions or need additional information, please call me at 733-3141. Sincerely,, • • VMAI OM L. . ard, P. E., Manager LJW/plr Planning and Environmental Branch Attachment cc: Mr. John Parker, Permit Coordinator, w/report Mr. John Dorney, Environmental Management, w/report Mr. C. W. Leggett, P. E. Mr. J. T. Peacock, Jr., P. E. Mr. A. L. Hankins, Jr., P. E. Mr. W. E. Hoke, P. E. An Equal Opportunity/Affirmative Action Employer • Wilkes County US 421 from US 421 Business to 0.10 Mile West of SR 13'213 (fancy Road) , West of Wilkesboro State Project Number 8.7376002 Federal Aid Number. HEST-86--2(32) T.I.P. I. D. Number W-2817 CATEGORICAL EXCLUSION APPROVED: Division of Highways -7-lo-92, 1)ate J . Sta U. S. Department of Transportation Federal Highway Administration And N. C. Department of Transportation O.W. synch, rraffi Eaineer, NCDOT 1=16 W .70 Date L. r P.E., Manager Planning and Environmental Branch, NCDOT - -- 4zite' Nirh s L. Graf, P S. Irea'Division Admini,,.trattor, FHWA a I Page Al Wilkes County US 421 from US 421 Business to 0.10 Mile West of SR 1323 (Dancy Road), West of Wilkesboro State Project Number 8.7376002 Federal Aid Number HESF-86-2(32) T.I.P. I. D. Number W-2817 PROPOSED ACTION The proposed project consists of the following: 1. Construction of an additional "northbound" 12-foot through lane along the north side of the project length. Total project length is approximately 0.85 mile. 2. Realignment and channelization of the US 421 Bypass/US 421 Business intersection. 3. Signalization of the intersections of US 421 with SR 1322 (Winkler Mill Road) and US 421 Business. 4. Coordination of these two traffic signals and other signals on US 421 and US 421 Business in a closed loop signal system. Note: This project is to be coordinated with Project W-2861, 9.8112931 (100% State Funds). W-2861 will widen US 421 along the south side from SR 1323 to SR 1322 to provide an additional "southbound" through lane. PURPOSE AND NEED: US 421 east of SR 1322 is a four-lane divided section with US 421 Business merging into US 421. US 421 northbound reduces from two lanes to a single lane at SR 1322. A traffic signal is needed at SR 1322, but cannot be installed without an additional travel lane. The new signal at SR 1322 should be coordinated with existing traffic signals along US 421 and US 421 Business to reduce accidents and congestion. See the attached High Accident Location Project Report. Estimated costs are as follows: W-2817 Construction Preliminary Engineering Total W-2861 Construction Grand Total $515,000 (Federal-Aid) 22,500 (Federal-Aid) $537,500 (Federal-Aid) $250,000 (State) $787,000 This project is being processed as a categorical exclusion (CE) under: 23 CFR 771.117(c)(8) or 23 CFR 771.117(d)(2) X Page A2 ENVIRONMENTAL EFFECTS A. NATURAL RESOURCES 1. Plant Communities The study area is dominated by grassy road shoulders. Portions of pavement will be removed when the intersection is rechannelized, and sections of pavement exist where the 12.-foot lane will be added. Conversations with the project engineer and project review indicate that no forested communities will be impacted by the proposed project. 2. Protected Species Information on federal and state protected species was obtained from the US Fish and Wildlife Service (USFWS) and the North Carolina Natural Heritage Program (NCNHP). As of March 16, 1992, the USFWS lists one federally protected species for Wilkes County, the American Peregrine falcon (Falco peregrinus anatum). Discussion of this species as it related to the study area follows. American Peregrine falcon Federally Endangered The peregrine falcon is slightly larger than a crow, with the females larger than males. Typical coloring of the adult bird is a solid slate-gray above and off-white to orange below, with horizontal brown barrings. Two habitat requirements of the peregrine falcon include cliffs for nesting and open country for hunting. Peregrine falcons have also been reported in cities where abundant skyscrapers and bridges simulate cliff type habitat. The study area and project vicinity are developed and do not support cliffs or skyscrapers that are suitable nesting habitat for the peregrine falcon. No impacts to the peregrine falcon will occur. 3. Water Resources According to the USGS quadrant map (Wilkesboro) dated 1966, two streams are crossed by the project. Both streams are unnamed and are tributaries of the Yadkin River. The "best usage" classification of these streams is the same as the river to which is is a tributary; in this case the Yadkin River. This section of the Yadkin River is classified WS-III. Best usage classification of WS-III waters is defined as a water supply segment with no categorical restrictions on watershed development or discharges; suitable for all Class C uses. The "best usage" classification of Class C waters is aquatic life propagation and survival, fishing, wildlife, secondary recreation and agriculture. 0 t Page A3 No High Quality Waters, Outstanding Resource Waters or waters classified WS-I and WS-II are located in the study area or within 1 mile downstream. The Yadkin River is not designated a Public Mountain trout water. 4. Wetlands Any action that proposes to impact "Waters of the US" falls under the jurisdiction of the Corps of Engineers and a federal permit is required. Generally, "Waters of the US" are subdivided into "wetlands" and "surface waters". Two streams are crossed by the project. One is located at the US 421 Bypass/421 Business intersection and the second is located approximately 1000' west of the intersection. No surface water or wetland impacts are anticipated at the stream located at the intersection, since the proposed project calls for pavement removal in the vicinity of the stream crossing. The second stream is not visible on the video tape of the study area. It is marked as an intermittent stream on the USGS quadrant map. Minor wetland and surface water impacts are likely from proposed construction. This is based on moderately steep topography in the study area and minor impacts associated with similar streams located in Wilkes County. Total wetland impacts are not likely to exceed 0.3 acre. One note - this stream may have been rechannelized in the past and may not be impacted at all by the proposed project. If "Waters of the US" will be impacted upon proposed construction, a Nationwide Permit 33 CFR 330.5(a))23) is likely to be applicable. This permit authorizes any activities undertaken, assisted, authorized, regulated, funded, or financed, in whole or in part, by another federal agency or department has determined pursuant to the Council of Environmental Quality regulation for implementing the procedural provisions of the National Environmental Policy Act, that the activity, work, or discharge is Categorically Excluded from environmental documentation because it is individually nor cumulatively have a significant effect on the human environment and the office of the Chief of Engineers has been furnished notice of the agency's or department's application for the CE and concurs with that determination. In addition, the project is located in a designated "trout" county. If surface water and wetland impacts are anticipated from proposed construction NCDOT is required to obtain a letter of approval from the North Carolina Wildlife Resources Commission to fulfill its section 404 permit obligations. The final permit decision rests with the Corps of Engineers. r I Page A4 A Section 404 General Water Quality Certification is required for any activity which may result in a discharge and for which a federal permit is required. State permits are administered through the Department of Environment, Health and Natural Resources (DEHNR). B. CULTURAL RESOURCES 1. Historic Architectural Resources C;6 This project is subject to compliance with Section 406 of the National Historic Preservation Act of 1966, as amended, implemented by the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106, codified at 36 CFR Part 800. Section 106 requires that if a federally funded, licensed, or permitted project has an effect on a property listed on or eligible for the National Register of Historic Places, the Advisory Council on Historic Preservation be given an opportunity to comment. The area of potential effect (APE) was surveyed. The project area is modern strip development. No properties over fifty years old were found, and therefore, no properties in the APE are eligible for the National Register. Since there are no properties either listed or eligible for the National Register within the APE, no further complaints with Section 106 is required. 2. Archaeological Study This project was reviewed internally by NCDOT staff archaeologist Tom Padgett for possible impacts upon significant archaeological resources. Due to the highly disturbed urban landscape in the project area, there is almost no possibility of the project affecting any sites that are eligible for the National Register of Historic Places. Therefore, no archaeological survey of the project was conducted. C. Traffic Noise/Air Quality The project is located with the Eastern Mountain Air Quality Control Region. The ambient air quality for Wilkes County has been determined to be in compliance with the National Ambient Air Quality Standards. Since this project is located in an area where the State Implementation Plan (SIP) does not contain any transportation control measures, the conformity procedures of 23 CFR 770 do not apply to this project. The project proposed to widen the existing roadway by the addition of a 12-foot lane on the north side. The land use in the vicinity of the project is commercial. Numerous right turn lanes presently line the north side of the facility for access to the businesses. The addition of the 12-foot lane will provide a continuous lane for right turns. The proposed r I Page A5 project will not substantially increase traffic volumes, but will provide a safer facility. Hence, the project's impact on noise and air quality will be insignificant. If vegetation is disposed of by burning, all burning shall be done in accordance with applicable local laws and regulations of the North Carolina SIP for air quality in compliance with 15 NCAC 2D.0520. This evaluation completes the assessment requirements in Title 23 of the Code of Federal Regulations, Part 772 (highway traffic noise) and Part 770 (air quality) and no additional reports are required. r 4;r D6 J w Eil WO _''l? F G 5' O \ son ? eu `Fer \ ` \ `L ?? J 18 ,TraohHl ?r'fhurmono ! s` McGnOr --Auslm wr.. Gw ] I HNIS Mill s I L [K/ E 5 bar 6 HeYf/S !' I 6 6 r ?ROenno r f ivu one! ..n.•o?. M?^ ulDar T Furplams onde I o. si ro?•.' Millers ? r? PurTe ereek ? r 1 •• d'.I r A1or.ri.n Feat • s Boo of ur. eve \ 1 0 u A ?yLF _ 2 ? \177 \ •r7?%g \ PROJECT LOCATION um rr r o ?:•.: ? .11 1111 _ - - ?' !271 ------------- 1 ULl d - ae o )? COQ s t 0 w Wilkes co, ! Airport r- 11 Lm NORTH CAROLINA DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS PLANNING AND ENVIRONNIFNTAL BRANCH WILKES COUNTY, US 421 FROM US 421 BUS. TO 0.10 MILE WEST OF SR 1323 (DANCY ROAD), W-2817/W-2861 L FIGURE 1 r US 421 BYPASS/US 421 BUSINESS INTERSECTION REVISIONS MALL ENTRANCE U9 421 BUSINESS PROPOSED TRAFFIC SIGNAL NEW PAVEMENT (/,q 427 6y pgss PAVEMENT TO BE REMOVED CHANNELIZATION NORTH CAROLINA DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS PLANNING AND ENVIRONMENTAL BRANCH WILKES COUNTY, US 421 FROM US 421 BUS. TO 0.10 MILE WEST OF SR 1323 (DANCY ROAD), W-2817/W-2861 FIGURE 2 r .. FORM N.C. DEPT. OF TRANSPORTATION FOR OFFICE USE TEB 76-01A DIV. OF HIGHWAYS - TRAFFIC ENG. BRANCH 6-4-76 HIGH ACCIDENT LOCATION - PROJECT REPORT I.D. NO. W-2817 REV.2-80 PROJECT NO. 8.7376002 TITLE SHEET PAGE 1 --------------------------------------- --------------------------------------- DIV. 11 COUNTY Wilkes (IN/NEAR) CITY Wilkesboro FED.AID SYS. LOCATION: US 421 from US 421 Business to 0.10 mile west of SR 1323 (Dancy Rd) CORRESPONDENCE SAFETY PROGRAM NO. YEAR PRIORITY NO. FILE NO.11-91-308 BRIEF STATEMENT OF PROBLEM: High volume of traffic and congestion at two unsignalized intersections and insufficient number of travel lanes on US 421. BRIEF STATEMENT OF PROPOSED TREATMENT: Construct an additional travel lane along US 421, install traffic signals at SR 1322 (Winkler Mill Road) and at US 421 Business, and incorporate both signals in a closed loop signal system. WORK TO BE PERFORMED BY X STATE, CITY, STATE CONTRACT, X OTHER CONTRACT RECOMMENDED FUNDING Hazard Elimination ESTIMATED COST $ 537,500 NET ANNUAL BENEFITS $ 454 BENEFIT-COST RATIO 1.01:1 MUNICIPAL AGREEMENT IS REQUIRED (YES/NO) NO RIGHT-OF-WAY IS REQUIRED (YES /NO) NO NO. PARCELS AFFECTED 0 NO. RELOCATEES 0 C /. INVESTIGATING PERSONNEL W. B. Staley, II, P.E. DATE INVEST. 5-30-91 AREA TRAFFIC ENGINEER APPROVAL L. T. Williams, P.E. DATE 6-11-91 STATE TRAFFIC ENGINEER APPROVAL tr\ DATE -7-110-q Z, • SOURCE OF PROJECT ANNUAL HIGH ACCIDENT LIST ROUTINE SURVEILLANCE PUBLIC REQUEST HIGHWAY PATROL REQUEST X DIV. OF HIGHWAYS REQUEST MUNICIPAL REQUEST OTHER-GIVE DETAILS BELOW: REVISIONS & UPDATES CHANGE DATE INITIALS PAGE 1-B CHECK LIST X TITLE SHEET HISTORICAL SUMMARY TURNING MOVEMENT COUNTS X LOCATION MAP PHOTOGRAPHS X COLLISION DIAGRAM ACCIDENT SUMMARIES ACCIDENT REPORTS X ACCIDENT CAUSAL FACTORS PROPOSED IMPROVEMENTS ALTERNATE IMPROVEMENTS INTERIM TREATMENT X CONDITION DIAGRAM X TREATMENT DIAGRAM X COST ESTIMATES X BENEFIT-COST ANALYSIS X TRAFFIC SIGNAL DATA SKID TEST RESULTS X OTHER: Typical Pavement Marking NOTE ATTACHED SEPARATE SHEETS WHEN NECESSARY r PAGE 2 FORM TEB 76-018 CONDITION DATA: CHECK IF SEPARATE SHEETS ARE ATTACHED FOR THE FOLLOWING X CONDITION DIAGRAM, TURNING MOVEMENT COUNTS, HISTORICAL SUMMARY, X LOCATION MAP, SUMMARY OF PROPOSED IMPROVEMENTS, SIGNAL INVENTORY DATA, PHOTOGRAPHS MAJOR ROAD: 1990 ADT= 18,000 2010 ADT= 47,800 STATEMENT OF EXISTING.PHYSICAL CONDITIONS: US 421 west of SR 1322 is a 3 lane section with one thru lane in both directions and a common center left turn lane. US 421 east of SR 1322 is a 4 lane divided section with US 421 Bus'merging into US 421. Development within this section is approxi- imately 60 percent commercial with potential for additional commercial growth on the remaining roadway frontage. The speed limit along this section of US 421 is 45 mph. USE ADDITIONAL SHEETS IF NECESSARY ACCIDENT DATA: CHECK IF SEPARATE SHEETS ARE ATTACHED FOR THE FOLLOWING: X COLLISION DIAGRAM, ACCIDENT SUMMARIES, ACCIDENT REPORTS, SKID TESTS. TOTAL NO. OF ACCIDENTS 41 FROM 1-1-88 TO 10-1-91 MONTHS 45 YEARS 3.75 DESCRIBE DIFFERENT IDENTIFIED PATTERNS AND THE NUMBER OF ACCIDENTS IN EACH: CONDITION DATA AND ACCIDENT DATA PATTERN NO. PATTERN DESCRIPTION NO. ACCIDENTS 1 2 3 4 Angle Rear-end Right turn-Same road Random/Miscellaneous 18 5 1 17 TOTAL 41 -------------- -------------- 0 PAGE 3 FORM TEB 76-O1C CAUSAL FACTORS AND POSSIBLE TREATMENT CAUSAL FACTORS: DESCRIBE CAUSAL FACTORS FOR EACH PATTERN AND LIST POSSIBLE TREATMENTS. PATTERN NO. CAUSAL FACTORS AND POSSIBLE TREATMENTS 1 Congestion and insufficient gaps for safe entry into traffic flow. Install traffic signals at SR 1322 and at US 421 Bus and construct an additional northbound travel lane west of SR 1322. 2 Congestion and merge condition to one lane. Construct additional northbound travel lane west of SR 1322. 3 Congestion and insufficient gaps for safe entry into traffic flow. Construct an additional northbound travel lane west of SR 1322. a FORM TEB 76-01D PAGE 4 PROPOSED IMPROVEMENTS ---------------------------------------------------- PROPOSED IMPROVEMENT: CHECK IF SEPARATE SHEETS ARE ATTACHED FOR FOLLOWING: ALTERNATE IMPROVEMENTS, INTERIM TREATMENTS, PLANS, SKETCHES DESCRIBE PROPOSED TOTAL'IMPROVEMENT ALONG WITH ANY INTERIM TREATMENTS: Install traffic signals at the intersection of US 421 and SR 1322 and at US 421 and US 421 Bus. Incorporate these signals in a closed loop signal system. Construct an additional northbound travel lane on US 421 west of SR 1322. I BENEFIT-COST ANALYSIS PAGE 5 LOCATION: US 421 FROM US 421 BUS TO 0.10 MI LE WEST OF SR 1323 (DANCY ROAD) DETAILED COST TYPE IMPROVEMENT CONSTRUCT ADDITIONAL TRAVEL LANE AND INSTALL TRAFFIC SIGNALS ------------------- ITEMS -------------------------- LABOR MATERIAL EQUIP ---------- TOTAL ----------------------- SERVICE ------------ CRF ---------- ANNUAL ---------- ----------- ----------- COST CONSTRUCTION $440,000 20 0.1019 $44,836 TRAF SIGNALS $75,000 10 0.1490 $11,175 PE $22,500 50 0.0817 $1,838 ------------------- TOTALS -------------------------- ---------- $537,500 ----------------------- ------------ ---------- $57,849 ---------- ----------- ----------- ESTIMATED INCREASE IN ANNUAL MAINTENANCE COST = $200 ESTIMATED INCREASE IN ANNUAL UTILITY COST = $600 TOTAL ANNUAL COST $58,649 TOTAL COST OF PROJECT --------------------------------------------- --------------------------------------------- ---------- ---------- ----------------------- ----------------------- ------------ ------------ $537,500 ---------- ---------- ---------- ---------- ----------- ----------- ----------- ----------- ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ ESTIMATED NUMBER OF ANNUAL ACCIDENT DECREASES ------------ ------------ ---------- ---------- ---------- ---------- ----------- ----------- ----------- ----------- PATTERN NO $+- YEARS FATAL FATAL INJURY INJURY POO P00 TOTAL ANNUAL ACC ACC ACC ACC ACC ACC ACC DECREASES BENEFITS ------------------- -------------------------- PER YR ---------- ----------------------- PER YR ------------ ---------- PER YR ---------- ----------- ----------- ------------------- TYPE 1 18 -------------------------- 75 3.75 0 ---------- 0.00 ----------------------- 8 ------------ 1.60 ---------- 10 ---------- 2.00 ----------- 3.50 ----------- $37,400 TYPE 2 1 50 3.75 0 0.00 0 0.00 1 0.13 0.13 $467 TYPE 3 1 75 3.75 0 0.00 0 0.00 1 0.20 0.20 $700 TYPE 4 0 0 3.75 0 0.00 0 0.00 0 0.00 0.00 $0 TYPE 5 0 0 3.75 0 0.00 0 0.00 0 0.00 0.00 $0 TOTALS 20 0 0.00 8 1.60 12 2.33 3.93 $38,567 FATALITIES PER YEAR REDUCED $500,000 = $0 INJURIES PER YEAR REDUCED $19,000 = $30,400 PROPERTY DAMAGE ONLY PER YEAR REDUCED $3,500 = $8,167 TOTAL ANNUAL BENEFITS $38,567 ADT INFLATION PRESENT ANNUAL TOTAL ANNUAL BENEFITS FACTOR FACTOR WORTH BENEFITS $38,567 1.5325 2.3024 0.4343 = $59,103 NET AVERAGE ANNUAL BENEFITS = AVERAGE ANNUAL BENEFITS - TOTAL ANNUAL COST = $454 BENEFIT-COST RATIO = AVERAGE ANNUAL BENEFITS / TOTAL ANNUAL COST = 1.01