US Bridges

SR1120 over Salem Creek

Good

Forsyth County, North Carolina · 0.2 Mi. E. Jct. SR2972 · Structure no. 000000000670118

Built
1991
34 years old
Condition
Good
inspected October 2023
Type
Slab
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
11,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1120 over Salem Creek is a prestressed concrete slab carrying SR1120 over Salem Creek in Forsyth County, North Carolina. It was built in 1991, so it is 34 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,500 vehicles a day, roughly 7% of them trucks, projected to reach 23,000 by 2040. The structure is 130 ft (39.6 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR1120
CrossesSalem Creek
Location0.2 Mi. E. Jct. SR2972
RouteState Highway 1120
CountyForsyth County
StateNorth Carolina
Coordinates36.03128, -80.31374
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length130 ft (39.6 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2021)
Projected traffic23,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 SR1120 over Salem Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR1120 over Salem Creek 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 October 2023.

How much traffic does SR1120 over Salem Creek carry?

About 11,500 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1120 over Salem Creek?

The structure is 130 ft (39.6 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns SR1120 over Salem Creek?

It is owned by the State Highway Agency.