US Bridges

Spring Mill Road over Falling River

Fair

Campbell County, Virginia · 0.01-RT604/0.39-RT606 · Structure no. 000000000004253

Built
1968
57 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
105 ft
3 main spans
Daily traffic
630
2022 count
Owner
State
State Highway Agency

About this bridge

Spring Mill Road over Falling River is a concrete slab carrying Spring Mill Road over Falling River in Campbell County, Virginia. It was built in 1968, so it is 57 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 630 vehicles a day, roughly 2% of them trucks, projected to reach 817 by 2042. The structure is 105 ft (32 m) long and 30 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesSpring Mill Road
CrossesFalling River
Location0.01-RT604/0.39-RT606
RouteCounty Highway 646
CountyCampbell County
StateVirginia
Coordinates37.24527, -78.92005
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2022)
Projected traffic817 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Spring Mill Road over Falling River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Spring Mill Road over Falling River 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 December 2023.

How much traffic does Spring Mill Road over Falling River carry?

About 630 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Spring Mill Road over Falling River?

The structure is 105 ft (32 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns Spring Mill Road over Falling River?

It is owned by the State Highway Agency.