US Bridges

335 ST over Br Old Grand Rvr

FairPosted for load

Cass County, Missouri · S 22 T 43 N R 31 W · Structure no. 24814

Built
1920
105 years old, rebuilt 1970
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
2 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

335 ST over Br Old Grand Rvr is a steel stringer/multi-beam or girder carrying 335 ST over Br Old Grand Rvr in Cass County, Missouri. It was built in 1920 and reconstructed in 1970, so it is 105 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, roughly 5% of them trucks, projected to reach 72 by 2044. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Carries335 ST
CrossesBr Old Grand Rvr
LocationS 22 T 43 N R 31 W
RouteCounty Highway 557
Coordinates38.50836, -94.33482
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.8 US tons
Inventory rating13.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length45 ft (13.7 m)
Longest span23 ft (7 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic72 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 335 ST over Br Old Grand Rvr built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1970.

What condition is 335 ST over Br Old Grand 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 April 2023.

How much traffic does 335 ST over Br Old Grand Rvr carry?

About 45 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 335 ST over Br Old Grand Rvr?

The structure is 45 ft (13.7 m) long with a longest span of 23 ft (7 m) and a deck 20 ft wide.

Who owns 335 ST over Br Old Grand Rvr?

It is owned by the County Highway Agency.