US Bridges

SR1118 over NC147

Fair

Durham County, North Carolina · 100 S. Jct. SR1364 · Structure no. 000000000630169

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
4 main spans
Daily traffic
17,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1118 over NC147 is a steel stringer/multi-beam or girder carrying SR1118 over NC147 in Durham County, North Carolina. It was built in 1968, so it is 57 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 17,000 vehicles a day, roughly 6% of them trucks, projected to reach 34,000 by 2040. The structure is 213 ft (64.9 m) long and 87 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1118
CrossesNC147
Location100 S. Jct. SR1364
RouteState Highway 1118
Coordinates35.98786, -78.89711
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.
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 inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating47 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length213 ft (64.9 m)
Longest span69 ft (21 m)
Deck width87 ft (26.6 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2021)
Projected traffic34,000 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 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 SR1118 over NC147 built?

It was built in 1968, making it 57 years old in 2025.

What condition is SR1118 over NC147 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 July 2023.

How much traffic does SR1118 over NC147 carry?

About 17,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1118 over NC147?

The structure is 213 ft (64.9 m) long with a longest span of 69 ft (21 m) and a deck 87 ft wide.

Who owns SR1118 over NC147?

It is owned by the State Highway Agency.