US Bridges

Smasal RD over Walnut CR

Fair

Pettis County, Missouri · S 12 T 44 N R 21 W · Structure no. 20208

Built
1975
50 years old, rebuilt 2018
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

Smasal RD over Walnut CR is a steel stringer/multi-beam or girder carrying Smasal RD over Walnut CR in Pettis County, Missouri. It was built in 1975 and reconstructed in 2018, so it is 50 years old, older 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 170 by 2044. The structure is 39 ft (11.8 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSmasal RD
CrossesWalnut CR
LocationS 12 T 44 N R 21 W
RouteCounty Highway 251
CountyPettis County
StateMissouri
Coordinates38.59231, -93.19418
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span37 ft (11.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic170 by 2044
Trucks10%
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

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 Smasal RD over Walnut CR built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2018.

What condition is Smasal RD over Walnut 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 February 2024.

How much traffic does Smasal RD over Walnut CR carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Smasal RD over Walnut CR?

The structure is 39 ft (11.8 m) long with a longest span of 37 ft (11.3 m) and a deck 25 ft wide.

Who owns Smasal RD over Walnut CR?

It is owned by the County Highway Agency.