US Bridges

County RD 353 over Salt Rvr

Fair

Shelby County, Missouri · S 15 T 57 N R 10 W · Structure no. 21294

Built
2001
24 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
195 ft
3 main spans
Daily traffic
65
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 353 over Salt Rvr is a prestressed concrete continuous stringer/multi-beam or girder carrying County RD 353 over Salt Rvr in Shelby County, Missouri. It was built in 2001, so it is 24 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 65 vehicles a day, roughly 10% of them trucks, projected to reach 81 by 2044. The structure is 195 ft (59.4 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty RD 353
CrossesSalt Rvr
LocationS 15 T 57 N R 10 W
RouteCounty Highway 300
CountyShelby County
StateMissouri
Coordinates39.743, -92.00167
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.3 US tons
Inventory rating51.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span75 ft (22.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2024)
Projected traffic81 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 County RD 353 over Salt Rvr built?

It was built in 2001, making it 24 years old in 2025.

What condition is County RD 353 over Salt Rvr 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 2024.

How much traffic does County RD 353 over Salt Rvr carry?

About 65 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 353 over Salt Rvr?

The structure is 195 ft (59.4 m) long with a longest span of 75 ft (22.9 m) and a deck 27 ft wide.

Who owns County RD 353 over Salt Rvr?

It is owned by the County Highway Agency.