US Bridges

SR1109 over Mill Creek

Good

Ashe County, North Carolina · 20 FT.S.JCT.SR1110 · Structure no. 000000000090017

Built
2016
9 years old
Condition
Good
inspected March 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
37 ft
1 main span
Daily traffic
200
2015 count
Owner
State
State Highway Agency

About this bridge

SR1109 over Mill Creek is a aluminum, wrought iron, or cast iron culvert carrying SR1109 over Mill 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 6% of them trucks, projected to reach 400 by 2040. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1109
CrossesMill Creek
Location20 FT.S.JCT.SR1110
RouteState Highway 1109
Coordinates36.30653, -81.56487
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.9 US tons
Inventory rating50.9 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHL 93
Structure length37 ft (11.2 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2015)
Projected traffic400 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1109 over Mill Creek built?

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

What condition is SR1109 over Mill 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 March 2023.

How much traffic does SR1109 over Mill Creek carry?

About 200 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR1109 over Mill Creek?

The structure is 37 ft (11.2 m) long with a longest span of 24 ft (7.3 m).

Who owns SR1109 over Mill Creek?

It is owned by the State Highway Agency.