HomeMy WebLinkAbout20171170 Ver 1_DMF_WRC Comments_20171025Coastul Nlanugem�rtt
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13RAXTON DAVIS
MEMORAIVD�M:
T0: Maria Rogerson, NC�OT Divusion 2 Bridge Program Manage�
FROM:
SU�lECG:
QATE:
Shane Staples, DCM Fisheries Resource Specialist
Division � Bridge RQpbacements
3/16/16
A�iorth Carolina �Divisian of CoastaV Management (pCh/l) F{sheries Resource 5pecialist has reviewed
scooping information received fQr several bridge replacernents in NCDOT Division 2 work area. I am on�y
s�bmitting cc�mments for those bridges which are dn counties urith CAMA jurisdiction. Witi� all b�idge
�e�lacemerrts DCM fisheries prefers fully spanning structures or when necessar}r that as few bents as
possible be p�aced im the stream and that they not be placed 6n a manner tp prevent rnovement of fish
or navigation when applicab�e. dn situations where culverts are used it is crucial that they be installed in
a rmanner to not prevent the passage of fish, it is rQcammended they be buried at m�nir►�um one faot
helow s�rbs4raQe.
�B-5617 Replace Sridge No. 41 over Swift Creek in Craven County. It is recomenended that the ar�cige be
replaced with a bridge.
27BPZ.R.71 Rep4ace Bridge No. 63 on SR 11Q4 over Hadnot Creek in Carteret Co�nty. It is recornrnended
that the bridge be replaced with a bridge.
B-56�� Replace bridge No. 315 on SR 1949 aver Durhart� Creek in Beaufo�rt County. Durham Creek is
designated as an Anadromous Fish Spawning Area. Bridge far bridge replacement is hig�hly suggested.
NCDOT shauld alsa abide an un-waker woric moratorium frc+m Feb 15 — June 30.
8-5620 Replace Ba-idge �fo. 30 in NC 33 over Campbell Cree'k in Beaufart Caunt+,r. Carnpbell Creek is not
designated as a promary nursery ar�a (PNA) �ut th�e area as habitat and ecological f�nctions simi�ar if not
i�entical to thai of a PNA. Here we recommend a bridge for bridge replacement. DCM fisheries will not
formally request the an inawater work moratorium from April 1— September 30, but this area would
benefit should NC��T complete the in-water wark c�utside af 4he PNA in-water work morato�iurrt.
Contact Sha�re �taples at (252} 948-3950 or shanestaples@ncdenr.�ov wvith further questions or
c�r�cerns.
�`/'Not1��g Compares"-.�
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cumia�cnts trrc pr��r i�1�:c� in t�c�ur�it►�itr w� AII1 �11�1� I�Al�l1� 4�t'll�c N:itiun��l t'n� io���»>ic•ni;til l'��li. ��1.1
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1. UVu ��ncrt�llti' ��n fcr �pt�niain� structusr�, ti�;miii�s�; �tru. tiaiti. u.ar�lh �i�, iu+t otv�uitr �kua�
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2. l3rid�c drek �irtaio�•.l��,ul�l i�nt �1i�cht�r�;r r�oat•r�l� intu thr alrcam.
3. l,ive �:«n�;r�tr �h�n�I�1 ti��t h2 :i�lu�vr�f 1t� c�,i�lart tt�r t�aitrr i�l ur c`l1iCI'161� I[ll�� (I1t`.R��;�n�.
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5. �t't�rn���,ram•y :icrr+• r�,;uls ur �1rt��ur, tu�c� r��nslrt��tr�i, It�r� .f���ulci t�r triu�,�r�� t�;i�•l. 1�� �+r�i�ur�:i1
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PAGE 2 MARCH 11, 2016
not more than iQ'x10'. If possible, when using temporary siructures the area should be cleared
but not grubbed. Clearing the area with chain saws, mowers, bush-hogs, or other rnechanized
equipment and leaving the stumps and root mat intact, allows the area to revegetate naturally arid
minimizes disturbed soil.
6. A clear banlc (riprap fiee) area of at least 10 feet should remain on each side of the steam
underneath the bridge.
7. ln trout waters, the N.C. Wildlife Resources Commission reviews all U.S. Army Corps of
Engineers nationwide and general `404' permits. We have the aption of requesting additional
measures to protect trout and trout habitat and we can recommend that the project require an
individual `404' permit.
8. In streams that contain threatened or endangered species, NCDOT biologist should be
notified. Special measures to protect these sensitive species may be required. NCDOT should
also contact the U.S. Fish and Wildlife Service for inforrnation on requirements of the
Endangered Species Act as it relates to the project.
9. In streams that are used by anadromous fish, the NCDOT official policy entitled "Stream
Crossing Guidelines for Anadromous Fish Passage (May 12, 1997)" shauld be followed.
10. SedimentaUon and erosion control measures sufficient to protect aquatic resources must be
implemented prior to any ground disturbing activities. Structures should be maintained
regularly, especially following rainfall events.
1 I. Temporary or permanent herbaceous vegetation should be planted on al[ bare soil within 15
days of ground disturbing activities to provide long-term erosion control.
12_ All work in or adjacent to stream waters should be conducted in a dry work area. Sandbags,
rock berms, cofferdams, or other diversion structures should be used where possible to prevent
excavation in flowing water.
l3. Heavy equipment should be operated from the bank rather than in stream channels in order to
minimize sedimentation and reduce ihe likelihood of introducing other poliutants into streams.
14. Only cleari, sedirrtent-free rock should be used as temporary #ifl (causeways), and should be
removed withou# excessive disturbance of the natural stream bottom when construction is
completed.
15. During subsurface investigations, equipment should be inspected daily and mainiained to
prevent contamination of surface waters from leaking fuels, lu6ricants, hydraulic fluids, or other
toxic materials.
Ifcorrugated metal pipe arches, reinforced concrete pipes, or concrete box culverts are used:
P:�GE � MAR('1! 11.2016
l. The culvert must be designed to aflow for aquatic life and fish passage. Generally, the culvcrt
or pipe imert should be buried at least 1 foot below the nawral streambed (measured f'rom the
natural thalweg dep[h). lf multiple barreis are rec{uired, barrels other than the base flow barrel(s)
should be placed on or near stream bankfull or floodplain bench elevation (similar to l.yonsfield
design)_ These should be reconnected to floodplain benches as appropriate. This may be
accomplished by utilizing sills on the upstream and downstream ends to resVict or divert flow to
the base flow barrel(s). Silled bacrels should be filled with sediment so as not to entrap wildlife
or support mosquito breeding conditions. Sufficient water depth should be provided in the base
flow barrel(s) during low flows [o accommodate fish movement. Ifculverts are longer than 40-
50 linear Feet, alternating or notched baftles should be installed in a manner that mimics existing
stream pattern. This should enhance aquatic life passage: 1) by depositing sediments in the
barrel, 2) by maintaining channe! depth and flow regimes, and 3) by providing resting places for
fish and other aquatic organisms. ln essence, base flow barrel(s) should provide a continuum of
water depth and channel width without substantial modifications of velocity.
2. If multiple pipes or cells are used, at leas[ one pipe or box should be designed to remain dry
during normal flows to allow for wildlife passage.
3. Culverts or pipes should be situated along the existing channel alignment whene�er possible
to avoid channel realignment. Widening the stream channel must be avoided. Stream channel
widening at i}ie inlet or outlet end of structures typically decreases water velocity causing
sediment deposition that requires increased maintenance and disrupts aquatic life passage.
4. Riprap should not be placed in the active thalweg channel or placed in the streambed in a
manner that precludes aquatic life passage. Bioengineering boulders or structures should be
professionatly designed, sized, and instatled.
In most cases, we prefer the replacement of the existing structure at the same location with road
ctosure. If road closure is not feasible, a temporary detour should be designed and located to
avoid wetEand impacts, minimize the need for clearing and to avoid destabilizing stream banks.
If the structure will be on a new alignment, the oid structure should be removed and the approach
fills removed from the I00-year floodplain. Approach fills should be removed down to the
natura! ground elevation. The area shauld be stabilized with grass and planted with native tree
species. lf the area reclaimed was previously wetlands, NCDOT should restore the area to
wetlands. If successful, the site may be utilized as mitigation for the subject project or other
projects in t�e watershed.
Project specific comments:
• B-4563 Replace Bridge No. 6 on SR 1301 over Big Chinquapin Branch in Jones County: We
recommend replacing this bridge with a bridge. 5tandard recommendations apply.
. B-5617 Replace Bridge No. 41 on SR 1464 over Swilt Creek in Craven County: We recommend
repiacing this bridge with a bridge. Standard recommendations apply.
PAGE 4
MAR('F[ I l, 2U16
• 178P.2.R.69 Replace Bridge No. 86 on SR 1251 over Kitten Creek in Pitt County: We recommend
replacing this bridge with a bridge. Standard recommendations apply.
• 178P.2.R.71 Replace Bridge Np. 63 on SR 11Q4 over Hadnot Creek in Carteret County: We
recommend replacing this bridge with a bridge. Standard recommendations apply.
• B-4528 Replace Bridge No. 25 on SR 1149 over Tyson Marsh in Greene County: We recommend
replating this bridge with a bridge. Standard recommendations apply.
• B-4530 Replace Bridge No.13 on SR 1222 o�er Beamon Run in Greene County: We recommend
replacing this bridge with a bridge. 5tandard recommendations apply.
• B-561$ Replace Bridge No. 315 on SR 1949 over Qurham Creek in Beaufort County: Durham
Creek is designated as an Anadromous Fish Spawning Area. NCDOT shoukd follow all stream
crossing guidelines for anadromous fish passage, including an in-water work moratorium from
February 15 to June 30. We recommend replacing this bridge with a bridge. Standard
recommendations apply.
• 8-5620 Replace Sridge No. 30 on NC 33 over Cambell Creek in Beaufart County: We recommend
replacing this bridge with a bridge. Standard recommendations apply.
If you need further assistance or information on NCWRC concerns regarding bridge
replacemenLs, please contact me at (919} 707-Q370. Thank you for the oppartanity to review and
commeni on this project.