US Bridges

Timber RIDGE/635 over Spreading Spring Branch

Good

Botetourt County, Virginia · 0.35-RTE634; 0.05-RTE630 · Structure no. 000000000003420

Built
1932
93 years old, rebuilt 2012
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
242
2022 count
Owner
State
State Highway Agency

About this bridge

Timber RIDGE/635 over Spreading Spring Branch is a steel stringer/multi-beam or girder carrying Timber RIDGE/635 over Spreading Spring Branch in Botetourt County, Virginia. It was built in 1932 and reconstructed in 2012, 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 242 vehicles a day, roughly 2% of them trucks, projected to reach 288 by 2042. The structure is 37 ft (11.2 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesTimber RIDGE/635
CrossesSpreading Spring Branch
Location0.35-RTE634; 0.05-RTE630
RouteCounty Highway 635
CountyBotetourt County
StateVirginia
Coordinates37.54718, -79.77107
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89.9 US tons
Inventory rating69 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span34 ft (10.3 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2022)
Projected traffic288 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$110.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Timber RIDGE/635 over Spreading Spring Branch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2012.

What condition is Timber RIDGE/635 over Spreading 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 July 2024.

How much traffic does Timber RIDGE/635 over Spreading Spring Branch carry?

About 242 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Timber RIDGE/635 over Spreading Spring Branch?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.3 m) and a deck 16 ft wide.

Who owns Timber RIDGE/635 over Spreading Spring Branch?

It is owned by the State Highway Agency.