US Bridges

SW Oak LN over Old Chan Thompson

Fair

Grundy County, Missouri · S 17 T 60 N R 24 W · Structure no. 22248

Built
1990
35 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

SW Oak LN over Old Chan Thompson is a steel stringer/multi-beam or girder carrying SW Oak LN over Old Chan Thompson in Grundy County, Missouri. It was built in 1990, so it is 35 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 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 64 ft (19.5 m) long and 20 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSW Oak LN
CrossesOld Chan Thompson
LocationS 17 T 60 N R 24 W
RouteCounty Highway 347
Coordinates40.01348, -93.63542
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating23.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length64 ft (19.5 m)
Longest span63 ft (19.2 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Oak LN over Old Chan Thompson built?

It was built in 1990, making it 35 years old in 2025.

What condition is SW Oak LN over Old Chan Thompson 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 SW Oak LN over Old Chan Thompson carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SW Oak LN over Old Chan Thompson?

The structure is 64 ft (19.5 m) long with a longest span of 63 ft (19.2 m) and a deck 20 ft wide.

Who owns SW Oak LN over Old Chan Thompson?

It is owned by the County Highway Agency.