US Bridges

Old Mill Plant. over Back Creek

Good

Roanoke County, Virginia · 0.01-RT 221; 0.40-RT 1482 · Structure no. 000000000030795

Built
2006
19 years old
Condition
Good
inspected June 2024
Type
Culvert
Steel
Length
86 ft
3 main spans
Daily traffic
80
2013 count
Owner
State
State Highway Agency

About this bridge

Old Mill Plant. over Back Creek is a steel culvert carrying Old Mill Plant. over Back Creek in Roanoke County, Virginia. It was built in 2006, so it is 19 years old, younger than the Virginia average of 50.7 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 80 vehicles a day, projected to reach 160 by 2042. The structure is 86 ft (26.1 m) long and 38 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesOld Mill Plant.
CrossesBack Creek
Location0.01-RT 221; 0.40-RT 1482
RouteCounty Highway 1481
CountyRoanoke County
StateVirginia
Coordinates37.19778, -80.07972
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length86 ft (26.1 m)
Longest span26 ft (7.9 m)
Deck width38 ft (11.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic80 (2013)
Projected traffic160 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Old Mill Plant. over Back Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Old Mill Plant. over Back 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 June 2024.

How much traffic does Old Mill Plant. over Back Creek carry?

About 80 vehicles per day (2013 count).

How long is Old Mill Plant. over Back Creek?

The structure is 86 ft (26.1 m) long with a longest span of 26 ft (7.9 m) and a deck 38 ft wide.

Who owns Old Mill Plant. over Back Creek?

It is owned by the State Highway Agency.