US Bridges

SR1322 over NC147

Fair

Durham County, North Carolina · 0.15 MI.S.JCT.US70 Bus. · Structure no. 000000000630137

Built
1974
51 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
167 ft
2 main spans
Daily traffic
16,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1322 over NC147 is a steel continuous stringer/multi-beam or girder carrying SR1322 over NC147 in Durham County, North Carolina. It was built in 1974, so it is 51 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.

It carries about 16,500 vehicles a day, roughly 6% of them trucks, projected to reach 33,000 by 2040. The structure is 167 ft (50.9 m) long and 73 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1322
CrossesNC147
Location0.15 MI.S.JCT.US70 Bus.
RouteState Highway 1322
Coordinates36.00386, -78.92063
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating48 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 20 + Mod
Structure length167 ft (50.9 m)
Longest span76 ft (23.1 m)
Deck width73 ft (22.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2021)
Projected traffic33,000 by 2040
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1322 over NC147 built?

It was built in 1974, making it 51 years old in 2025.

What condition is SR1322 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 May 2023.

How much traffic does SR1322 over NC147 carry?

About 16,500 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1322 over NC147?

The structure is 167 ft (50.9 m) long with a longest span of 76 ft (23.1 m) and a deck 73 ft wide.

Who owns SR1322 over NC147?

It is owned by the State Highway Agency.