US Bridges

SR1110 over I40

Fair

Durham County, North Carolina · 0.3 MI.N.JCT.SR1113 · Structure no. 000000000630313

Built
1987
38 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
230 ft
2 main spans
Daily traffic
11,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1110 over I40 is a steel stringer/multi-beam or girder carrying SR1110 over I40 in Durham County, North Carolina. It was built in 1987, so it is 38 years old, younger 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.

It carries about 11,000 vehicles a day, roughly 7% of them trucks, projected to reach 22,000 by 2040. The structure is 230 ft (70.1 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR1110
CrossesI40
Location0.3 MI.N.JCT.SR1113
RouteState Highway 1110
CountyDurham County
StateNorth Carolina
Coordinates35.93313, -78.9891
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length230 ft (70.1 m)
Longest span115 ft (35 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2021)
Projected traffic22,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1110 over I40 built?

It was built in 1987, making it 38 years old in 2025.

What condition is SR1110 over I40 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 October 2023.

How much traffic does SR1110 over I40 carry?

About 11,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1110 over I40?

The structure is 230 ft (70.1 m) long with a longest span of 115 ft (35 m) and a deck 32 ft wide.

Who owns SR1110 over I40?

It is owned by the State Highway Agency.