US Bridges

SR1133 over Silver Creek

Fair

Burke County, North Carolina · 1 MI.E.JCT.SR1129 · Structure no. 000000000230275

Built
1979
46 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
91 ft
3 main spans
Daily traffic
500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1133 over Silver Creek is a prestressed concrete slab carrying SR1133 over Silver Creek in Burke County, North Carolina. It was built in 1979, so it is 46 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 500 vehicles a day, roughly 6% of them trucks, projected to reach 1,000 by 2040. The structure is 91 ft (27.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1133
CrossesSilver Creek
Location1 MI.E.JCT.SR1129
RouteState Highway 1133
Coordinates35.6614, -81.82334
Functional classRural Minor 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.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length91 ft (27.7 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2021)
Projected traffic1,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1133 over Silver Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is SR1133 over Silver Creek 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 September 2023.

How much traffic does SR1133 over Silver Creek carry?

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

How long is SR1133 over Silver Creek?

The structure is 91 ft (27.7 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns SR1133 over Silver Creek?

It is owned by the State Highway Agency.