US Bridges

285 TH ST over W Fk of Grand Rvr

PoorPosted for load

Gentry County, Missouri · S 32 T 64 N R 32 W · Structure no. 13002

Built
1910
115 years old, rebuilt 2008
Condition
Poor
inspected February 2023
Type
Truss - Thru
Steel
Length
417 ft
1 main span
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

285 TH ST over W Fk of Grand Rvr is a steel truss - thru carrying 285 TH ST over W Fk of Grand Rvr in Gentry County, Missouri. It was built in 1910 and reconstructed in 2008, so it is 115 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2044. The structure is 417 ft (127.2 m) long and 15 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries285 TH ST
CrossesW Fk of Grand Rvr
LocationS 32 T 64 N R 32 W
RouteCounty Highway 26
Coordinates40.30703, -94.53342
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.9 US tons
Inventory rating7.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+4 approach)
Design loadOther
Structure length417 ft (127.2 m)
Longest span140 ft (42.7 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic50 (2024)
Projected traffic58 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 285 TH ST over W Fk of Grand Rvr built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2008.

What condition is 285 TH ST over W Fk of Grand Rvr in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.

How much traffic does 285 TH ST over W Fk of Grand Rvr carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 285 TH ST over W Fk of Grand Rvr?

The structure is 417 ft (127.2 m) long with a longest span of 140 ft (42.7 m) and a deck 15 ft wide.

Who owns 285 TH ST over W Fk of Grand Rvr?

It is owned by the County Highway Agency.