US Bridges

SR1401 over Eno River

Fair

Durham County, North Carolina · 0.5 MI.N.JCT.SR1400 · Structure no. 000000000630049

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
187 ft
3 main spans
Daily traffic
8,600
2021 count
Owner
State
State Highway Agency

About this bridge

SR1401 over Eno River is a prestressed concrete stringer/multi-beam or girder carrying SR1401 over Eno River in Durham County, North Carolina. It was built in 1964, so it is 61 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 8,600 vehicles a day, roughly 6% of them trucks, projected to reach 17,200 by 2040. The structure is 187 ft (56.9 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR1401
CrossesEno River
Location0.5 MI.N.JCT.SR1400
RouteState Highway 1401
Coordinates36.05934, -78.97804
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length187 ft (56.9 m)
Longest span60 ft (18.2 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2021)
Projected traffic17,200 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1401 over Eno River built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR1401 over Eno River 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 August 2023.

How much traffic does SR1401 over Eno River carry?

About 8,600 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1401 over Eno River?

The structure is 187 ft (56.9 m) long with a longest span of 60 ft (18.2 m) and a deck 33 ft wide.

Who owns SR1401 over Eno River?

It is owned by the State Highway Agency.