US Bridges

West Main ST.(460) over Callahan Branch

Fair

Roanoke County, Virginia · 2.69-SALEM; 3.14-MONT Co. · Structure no. 000000000014848

Built
1922
103 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
55 ft
2 main spans
Daily traffic
8,901
2022 count
Owner
State
State Highway Agency

About this bridge

West Main ST.(460) over Callahan Branch is a concrete tee beam carrying West Main ST.(460) over Callahan Branch in Roanoke County, Virginia. It was built in 1922, so it is 103 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,901 vehicles a day, projected to reach 9,925 by 2045. The structure is 55 ft (16.8 m) long and 61 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWest Main ST.(460)
CrossesCallahan Branch
Location2.69-SALEM; 3.14-MONT Co.
RouteU.S. Route 11
CountyRoanoke County
StateVirginia
Coordinates37.26385, -80.15487
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum 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 rating53 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span26 ft (8 m)
Deck width61 ft (18.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,901 (2022)
Projected traffic9,925 by 2045
Trucks0%
Lanes on structure4
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$614.6 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was West Main ST.(460) over Callahan Branch built?

It was built in 1922, making it 103 years old in 2025.

What condition is West Main ST.(460) over Callahan Branch 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 November 2023.

How much traffic does West Main ST.(460) over Callahan Branch carry?

About 8,901 vehicles per day (2022 count).

How long is West Main ST.(460) over Callahan Branch?

The structure is 55 ft (16.8 m) long with a longest span of 26 ft (8 m) and a deck 61 ft wide.

Who owns West Main ST.(460) over Callahan Branch?

It is owned by the State Highway Agency.