US Bridges

SR1139 over Tributary Grays Branch

Good

Caswell County, North Carolina · 0.75 Mi.S. Jct. SR1100 · Structure no. 000000000330026

Built
2015
10 years old
Condition
Good
inspected March 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
300
2019 count
Owner
State
State Highway Agency

About this bridge

SR1139 over Tributary Grays Branch is a prestressed concrete box beam or girders - multiple carrying SR1139 over Tributary Grays Branch in Caswell County, North Carolina. It was built in 2015, so it is 10 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 300 vehicles a day, roughly 6% of them trucks, projected to reach 600 by 2040. The structure is 87 ft (26.5 m) long and 30 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSR1139
CrossesTributary Grays Branch
Location0.75 Mi.S. Jct. SR1100
RouteState Highway 1139
Coordinates36.26393, -79.47646
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating92.9 US tons
Inventory rating66.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length87 ft (26.5 m)
Longest span84 ft (25.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2019)
Projected traffic600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 SR1139 over Tributary Grays Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is SR1139 over Tributary Grays 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 March 2021.

How much traffic does SR1139 over Tributary Grays Branch carry?

About 300 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1139 over Tributary Grays Branch?

The structure is 87 ft (26.5 m) long with a longest span of 84 ft (25.6 m) and a deck 30 ft wide.

Who owns SR1139 over Tributary Grays Branch?

It is owned by the State Highway Agency.