US Bridges

SR1151 over Back Branch

Good

Madison County, North Carolina · .01 MI.N.JCT.SR1157 · Structure no. 000000001150222

Built
2022
3 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
550
2021 count
Owner
State
State Highway Agency

About this bridge

SR1151 over Back Branch is a prestressed concrete slab carrying SR1151 over Back Branch in Madison County, North Carolina. It was built in 2022, so it is 3 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 6% of them trucks, projected to reach 1,100 by 2040. The structure is 38 ft (11.5 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1151
CrossesBack Branch
Location.01 MI.N.JCT.SR1157
RouteState Highway 1151
Coordinates35.79678, -82.80713
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating47 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length38 ft (11.5 m)
Longest span34 ft (10.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2021)
Projected traffic1,100 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1151 over Back Branch built?

It was built in 2022, making it 3 years old in 2025.

What condition is SR1151 over Back Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does SR1151 over Back Branch carry?

About 550 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1151 over Back Branch?

The structure is 38 ft (11.5 m) long with a longest span of 34 ft (10.3 m) and a deck 27 ft wide.

Who owns SR1151 over Back Branch?

It is owned by the State Highway Agency.