US Bridges

Snake Hill RD over Voss CR

Fair

Franklin County, Missouri · S 19 T 42 N R 1 W · Structure no. 30990

Built
2003
22 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

Snake Hill RD over Voss CR is a prestressed concrete stringer/multi-beam or girder carrying Snake Hill RD over Voss CR in Franklin County, Missouri. It was built in 2003, so it is 22 years old, younger than the Missouri average of 45.1 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 450 by 2043. The structure is 92 ft (28 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSnake Hill RD
CrossesVoss CR
LocationS 19 T 42 N R 1 W
RouteCounty Highway 2430
Coordinates38.37611, -91.08056
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.4 US tons
Inventory rating45.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span88 ft (26.8 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic450 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Snake Hill RD over Voss CR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Snake Hill RD over Voss CR 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 March 2023.

How much traffic does Snake Hill RD over Voss CR carry?

About 250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Snake Hill RD over Voss CR?

The structure is 92 ft (28 m) long with a longest span of 88 ft (26.8 m) and a deck 27 ft wide.

Who owns Snake Hill RD over Voss CR?

It is owned by the County Highway Agency.