US Bridges

CO RD SW 1921 over Br of Big CR

Fair

Johnson County, Missouri · S 3 T 44 N R 29 W · Structure no. 25051

Built
1900
125 years old, rebuilt 1983
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
63
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD SW 1921 over Br of Big CR is a prestressed concrete tee beam carrying CO RD SW 1921 over Br of Big CR in Johnson County, Missouri. It was built in 1900 and reconstructed in 1983, so it is 125 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 63 vehicles a day, roughly 10% of them trucks, projected to reach 101 by 2043. The structure is 114 ft (34.7 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCO RD SW 1921
CrossesBr of Big CR
LocationS 3 T 44 N R 29 W
RouteCounty Highway 606
Coordinates38.64078, -94.10315
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 inspectionDecember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating42.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length114 ft (34.7 m)
Longest span38 ft (11.6 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63 (2023)
Projected traffic101 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CO RD SW 1921 over Br of Big CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1983.

What condition is CO RD SW 1921 over Br of Big 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 December 2024.

How much traffic does CO RD SW 1921 over Br of Big CR carry?

About 63 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD SW 1921 over Br of Big CR?

The structure is 114 ft (34.7 m) long with a longest span of 38 ft (11.6 m) and a deck 23 ft wide.

Who owns CO RD SW 1921 over Br of Big CR?

It is owned by the County Highway Agency.