US Bridges

Tilthammer Mill RD over Spout Run

FairPosted for load

Clarke County, Virginia · 1.40 to 723 - 0.80 to 651 · Structure no. 000000000005431

Built
1957
68 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
97 ft
2 main spans
Daily traffic
218
2018 count
Owner
State
State Highway Agency

About this bridge

Tilthammer Mill RD over Spout Run is a concrete tee beam carrying Tilthammer Mill RD over Spout Run in Clarke County, Virginia. It was built in 1957, so it is 68 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 218 vehicles a day, projected to reach 336 by 2045. The structure is 97 ft (29.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesTilthammer Mill RD
CrossesSpout Run
Location1.40 to 723 - 0.80 to 651
RouteCounty Highway 621
CountyClarke County
StateVirginia
Coordinates39.06579, -78.00326
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37 US tons
Inventory rating29 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length97 ft (29.6 m)
Longest span46 ft (14 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218 (2018)
Projected traffic336 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-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$88 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Tilthammer Mill RD over Spout Run built?

It was built in 1957, making it 68 years old in 2025.

What condition is Tilthammer Mill RD over Spout Run 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 April 2023.

How much traffic does Tilthammer Mill RD over Spout Run carry?

About 218 vehicles per day (2018 count).

How long is Tilthammer Mill RD over Spout Run?

The structure is 97 ft (29.6 m) long with a longest span of 46 ft (14 m) and a deck 25 ft wide.

Who owns Tilthammer Mill RD over Spout Run?

It is owned by the State Highway Agency.