US Bridges

SR1277 over Michael Branch

Fair

Davidson County, North Carolina · 0.4 Mi. S. Jct. US29 · Structure no. 000000000570301

Built
1988
37 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
44 ft
2 main spans
Daily traffic
1,400
2017 count
Owner
State
State Highway Agency

About this bridge

SR1277 over Michael Branch is a steel culvert carrying SR1277 over Michael Branch in Davidson County, North Carolina. It was built in 1988, so it is 37 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 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 1,400 vehicles a day, roughly 6% of them trucks, projected to reach 2,800 by 2040. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1277
CrossesMichael Branch
Location0.4 Mi. S. Jct. US29
RouteState Highway 1277
Coordinates35.80827, -80.2845
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating62.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length44 ft (13.4 m)
Longest span20 ft (6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2017)
Projected traffic2,800 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SR1277 over Michael Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR1277 over Michael Branch 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 February 2024.

How much traffic does SR1277 over Michael Branch carry?

About 1,400 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR1277 over Michael Branch?

The structure is 44 ft (13.4 m) long with a longest span of 20 ft (6 m).

Who owns SR1277 over Michael Branch?

It is owned by the State Highway Agency.