US Bridges

Barnard RD over Old Chnl Grand Rvr

FairPosted for load

Cass County, Missouri · S 1 T 42 N R 31 W · Structure no. 24912

Built
1920
105 years old
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
100 ft
1 main span
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

Barnard RD over Old Chnl Grand Rvr is a steel truss - thru carrying Barnard RD over Old Chnl Grand Rvr in Cass County, Missouri. It was built in 1920, 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 100 ft (30.5 m) long and 14 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesBarnard RD
CrossesOld Chnl Grand Rvr
LocationS 1 T 42 N R 31 W
RouteCounty Highway 577
CountyCass County
StateMissouri
Coordinates38.46556, -94.29011
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating35.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length100 ft (30.5 m)
Longest span100 ft (30.5 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic72 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$710,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Barnard RD over Old Chnl Grand Rvr built?

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

What condition is Barnard RD over Old Chnl 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 Barnard RD over Old Chnl Grand Rvr carry?

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

How long is Barnard RD over Old Chnl Grand Rvr?

The structure is 100 ft (30.5 m) long with a longest span of 100 ft (30.5 m) and a deck 14 ft wide.

Who owns Barnard RD over Old Chnl Grand Rvr?

It is owned by the County Highway Agency.