US Bridges

SR1671 over Norfolk & Western RR

Fair

Durham County, North Carolina · 0.6 MI.S.JCT.SR1709 · Structure no. 000000000630037

Built
1983
42 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
138 ft
3 main spans
Daily traffic
2,600
2015 count
Owner
State
State Highway Agency

About this bridge

SR1671 over Norfolk & Western RR is a prestressed concrete slab carrying SR1671 over Norfolk & Western RR in Durham County, North Carolina. It was built in 1983, so it is 42 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,600 vehicles a day, roughly 7% of them trucks, projected to reach 5,200 by 2040. The structure is 138 ft (42 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR1671
CrossesNorfolk & Western RR
Location0.6 MI.S.JCT.SR1709
RouteState Highway 1671
CountyDurham County
StateNorth Carolina
Coordinates36.01422, -78.87548
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length138 ft (42 m)
Longest span46 ft (14 m)
Deck width48 ft (14.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2015)
Projected traffic5,200 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1671 over Norfolk & Western RR built?

It was built in 1983, making it 42 years old in 2025.

What condition is SR1671 over Norfolk & Western RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does SR1671 over Norfolk & Western RR carry?

About 2,600 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR1671 over Norfolk & Western RR?

The structure is 138 ft (42 m) long with a longest span of 46 ft (14 m) and a deck 48 ft wide.

Who owns SR1671 over Norfolk & Western RR?

It is owned by the State Highway Agency.