US Bridges

SR1100 over Three Top Creek

Good

Ashe County, North Carolina · 25 N..JCT.E.SR1121 · Structure no. 000000000090187

Built
2016
9 years old
Condition
Good
inspected May 2022
Type
Slab
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
790
2015 count
Owner
State
State Highway Agency

About this bridge

SR1100 over Three Top Creek is a prestressed concrete slab carrying SR1100 over Three Top Creek in Ashe County, North Carolina. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 790 vehicles a day, roughly 6% of them trucks, projected to reach 1,580 by 2040. The structure is 67 ft (20.4 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1100
CrossesThree Top Creek
Location25 N..JCT.E.SR1121
RouteState Highway 1100
Coordinates36.42801, -81.62365
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length67 ft (20.4 m)
Longest span64 ft (19.5 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2015)
Projected traffic1,580 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Three Top Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is SR1100 over Three Top Creek 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 May 2022.

How much traffic does SR1100 over Three Top Creek carry?

About 790 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1100 over Three Top Creek?

The structure is 67 ft (20.4 m) long with a longest span of 64 ft (19.5 m) and a deck 27 ft wide.

Who owns SR1100 over Three Top Creek?

It is owned by the State Highway Agency.