US Bridges

SR1004 over Eno River

FairPosted for load

Durham County, North Carolina · 50 Ft S. of JCT SR1631 · Structure no. 000000000630024

Built
1951
74 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
180 ft
4 main spans
Daily traffic
7,700
2021 count
Owner
State
State Highway Agency

About this bridge

SR1004 over Eno River is a concrete stringer/multi-beam or girder carrying SR1004 over Eno River in Durham County, North Carolina. It was built in 1951, so it is 74 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 7,700 vehicles a day, roughly 8% of them trucks, projected to reach 15,400 by 2040. The structure is 180 ft (54.8 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR1004
CrossesEno River
Location50 Ft S. of JCT SR1631
RouteState Highway 1004
CountyDurham County
StateNorth Carolina
Coordinates36.07262, -78.86276
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.9 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length180 ft (54.8 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2021)
Projected traffic15,400 by 2040
Trucks8%
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 SR1004 over Eno River built?

It was built in 1951, making it 74 years old in 2025.

What condition is SR1004 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 June 2024.

How much traffic does SR1004 over Eno River carry?

About 7,700 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is SR1004 over Eno River?

The structure is 180 ft (54.8 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns SR1004 over Eno River?

It is owned by the State Highway Agency.