US Bridges

SR1127 over NC147

Fair

Durham County, North Carolina · 0.1 MI.W.SR1361 · Structure no. 000000000630147

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
161 ft
3 main spans
Daily traffic
11,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1127 over NC147 is a prestressed concrete stringer/multi-beam or girder carrying SR1127 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 11,000 vehicles a day, roughly 6% of them trucks, projected to reach 22,000 by 2040. The structure is 161 ft (49 m) long and 71 ft wide.

Location

Open in Google Maps
CarriesSR1127
CrossesNC147
Location0.1 MI.W.SR1361
RouteState Highway 1127
CountyDurham County
StateNorth Carolina
Coordinates35.99693, -78.91204
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating51.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length161 ft (49 m)
Longest span64 ft (19.5 m)
Deck width71 ft (21.7 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2021)
Projected traffic22,000 by 2040
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 SR1127 over NC147 built?

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

What condition is SR1127 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 April 2023.

How much traffic does SR1127 over NC147 carry?

About 11,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1127 over NC147?

The structure is 161 ft (49 m) long with a longest span of 64 ft (19.5 m) and a deck 71 ft wide.

Who owns SR1127 over NC147?

It is owned by the State Highway Agency.