US Bridges

County RD 290 over Blackberry CR

FairPosted for load

Jasper County, Missouri · S 17 T 30 N R 33 W · Structure no. 12313

Built
1910
115 years old
Condition
Fair
inspected January 2025
Type
Truss - Thru
Steel
Length
67 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 290 over Blackberry CR is a steel truss - thru carrying County RD 290 over Blackberry CR in Jasper County, Missouri. It was built in 1910, 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 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2043. The structure is 67 ft (20.4 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty RD 290
CrossesBlackberry CR
LocationS 17 T 30 N R 33 W
RouteCounty Highway 6
CountyJasper County
StateMissouri
Coordinates37.35438, -94.57556
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating16.9 US tons
Inventory rating7.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length67 ft (20.4 m)
Longest span64 ft (19.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic38 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$510,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 290 over Blackberry CR built?

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

What condition is County RD 290 over Blackberry 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 January 2025.

How much traffic does County RD 290 over Blackberry CR carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 290 over Blackberry CR?

The structure is 67 ft (20.4 m) long with a longest span of 64 ft (19.5 m) and a deck 24 ft wide.

Who owns County RD 290 over Blackberry CR?

It is owned by the County Highway Agency.