US Bridges

SR1278 over Boulding Branch

Good

Guilford County, North Carolina · 0.5 Mi. N. Jct. SR1471 · Structure no. 000000000810980

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
12,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1278 over Boulding Branch is a concrete continuous culvert carrying SR1278 over Boulding Branch in Guilford County, North Carolina. It was built in 2003, so it is 22 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 12,000 vehicles a day, roughly 12% of them trucks, projected to reach 24,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1278
CrossesBoulding Branch
Location0.5 Mi. N. Jct. SR1471
RouteState Highway 1278
Coordinates35.97461, -79.99404
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating58 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2021)
Projected traffic24,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 SR1278 over Boulding Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is SR1278 over Boulding 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 October 2023.

How much traffic does SR1278 over Boulding Branch carry?

About 12,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR1278 over Boulding Branch?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m).

Who owns SR1278 over Boulding Branch?

It is owned by the State Highway Agency.