US Bridges

Roanoke Road / 11 over Spring Branch

Good

Montgomery County, Virginia · .02-RTE636; 1.0 RTE641 · Structure no. 000000000012129

Built
1932
93 years old, rebuilt 2020
Condition
Good
inspected December 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
4,379
2022 count
Owner
State
State Highway Agency

About this bridge

Roanoke Road / 11 over Spring Branch is a concrete slab carrying Roanoke Road / 11 over Spring Branch in Montgomery County, Virginia. It was built in 1932 and reconstructed in 2020, so it is 93 years old, older 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 4,379 vehicles a day, projected to reach 4,434 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoanoke Road / 11
CrossesSpring Branch
Location.02-RTE636; 1.0 RTE641
RouteU.S. Route 11
CountyMontgomery County
StateVirginia
Coordinates37.1649, -80.2925
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating79 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,379 (2022)
Projected traffic4,434 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$128 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Roanoke Road / 11 over Spring Branch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2020.

What condition is Roanoke Road / 11 over Spring Branch 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 December 2024.

How much traffic does Roanoke Road / 11 over Spring Branch carry?

About 4,379 vehicles per day (2022 count).

How long is Roanoke Road / 11 over Spring Branch?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 31 ft wide.

Who owns Roanoke Road / 11 over Spring Branch?

It is owned by the State Highway Agency.