US Bridges

SR1518 over Allen Branch

Fair

Henderson County, North Carolina · .5 MI.S.JCT.SR1513 · Structure no. 000000000890238

Built
1995
30 years old
Condition
Fair
inspected February 2025
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
2,900
2016 count
Owner
State
State Highway Agency

About this bridge

SR1518 over Allen Branch is a steel culvert carrying SR1518 over Allen Branch in Henderson County, North Carolina. It was built in 1995, so it is 30 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 5 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 2,900 vehicles a day, roughly 7% of them trucks, projected to reach 5,800 by 2040. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

No coordinates are recorded for this structure.

CarriesSR1518
CrossesAllen Branch
Location.5 MI.S.JCT.SR1513
RouteState Highway 1518
CountyHenderson County
StateNorth Carolina
Functional classUrban 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating99 US tons
Inventory rating89 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 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 traffic2,900 (2016)
Projected traffic5,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 SR1518 over Allen Branch built?

It was built in 1995, making it 30 years old in 2025.

What condition is SR1518 over Allen 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 2025.

How much traffic does SR1518 over Allen Branch carry?

About 2,900 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is SR1518 over Allen Branch?

The structure is 27 ft (8.2 m) long with a longest span of 9 ft (2.7 m).

Who owns SR1518 over Allen Branch?

It is owned by the State Highway Agency.