US Bridges

SR1158 over Colbert Creek

PoorPosted for load

Yancey County, North Carolina · .01 MI.E.JCT.SR1159 · Structure no. 000000001990156

Built
1956
69 years old, rebuilt 1989
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
300
2019 count
Owner
State
State Highway Agency

About this bridge

SR1158 over Colbert Creek is a steel stringer/multi-beam or girder carrying SR1158 over Colbert Creek in Yancey County, North Carolina. It was built in 1956 and reconstructed in 1989, so it is 69 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 6% of them trucks, projected to reach 600 by 2040. The structure is 36 ft (10.9 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1158
CrossesColbert Creek
Location.01 MI.E.JCT.SR1159
RouteState Highway 1158
Coordinates35.80103, -82.20798
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating32 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length36 ft (10.9 m)
Longest span34 ft (10.3 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 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 closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1158 over Colbert Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1989.

What condition is SR1158 over Colbert Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does SR1158 over Colbert Creek carry?

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

How long is SR1158 over Colbert Creek?

The structure is 36 ft (10.9 m) long with a longest span of 34 ft (10.3 m) and a deck 20 ft wide.

Who owns SR1158 over Colbert Creek?

It is owned by the State Highway Agency.