US Bridges

SW Shewey RD over Linn Br

Good

Clinton County, Missouri · S 13 T 54 N R 33 W · Structure no. 21296

Built
1981
44 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

SW Shewey RD over Linn Br is a steel continuous stringer/multi-beam or girder carrying SW Shewey RD over Linn Br in Clinton County, Missouri. It was built in 1981, so it is 44 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2043. The structure is 200 ft (61 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSW Shewey RD
CrossesLinn Br
LocationS 13 T 54 N R 33 W
RouteCounty Highway 300
Coordinates39.49299, -94.54905
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.6 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length200 ft (61 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic40 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 SW Shewey RD over Linn Br built?

It was built in 1981, making it 44 years old in 2025.

What condition is SW Shewey RD over Linn Br in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does SW Shewey RD over Linn Br carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW Shewey RD over Linn Br?

The structure is 200 ft (61 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns SW Shewey RD over Linn Br?

It is owned by the County Highway Agency.