US Bridges

SR1100 over Ut to Three Top Creek

FairPosted for load

Ashe County, North Carolina · 1 MI.S.JCT.SR1124 · Structure no. 000000000090255

Built
1955
70 years old, rebuilt 1976
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
430
2015 count
Owner
State
State Highway Agency

About this bridge

SR1100 over Ut to Three Top Creek is a steel stringer/multi-beam or girder carrying SR1100 over Ut to Three Top Creek in Ashe County, North Carolina. It was built in 1955 and reconstructed in 1976, so it is 70 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 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. Its operating status is: posted for load restriction.

It carries about 430 vehicles a day, roughly 6% of them trucks, projected to reach 860 by 2040. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesSR1100
CrossesUt to Three Top Creek
Location1 MI.S.JCT.SR1124
RouteState Highway 1100
Coordinates36.37401, -81.61296
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2015)
Projected traffic860 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1100 over Ut to Three Top Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1976.

What condition is SR1100 over Ut to Three Top Creek 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 July 2024.

How much traffic does SR1100 over Ut to Three Top Creek carry?

About 430 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1100 over Ut to Three Top Creek?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 24 ft wide.

Who owns SR1100 over Ut to Three Top Creek?

It is owned by the State Highway Agency.