US Bridges

Chihuahua RD over Blackjack CR

Fair

Lafayette County, Missouri · S 22 T 48 N R 26 W · Structure no. 22683

Built
1930
95 years old, rebuilt 1985
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Chihuahua RD over Blackjack CR is a steel stringer/multi-beam or girder carrying Chihuahua RD over Blackjack CR in Lafayette County, Missouri. It was built in 1930 and reconstructed in 1985, so it is 95 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 46 by 2044. The structure is 43 ft (13.1 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesChihuahua RD
CrossesBlackjack CR
LocationS 22 T 48 N R 26 W
RouteCounty Highway 369
CountyLafayette County
StateMissouri
Coordinates38.93601, -93.779
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating27.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic46 by 2044
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 Chihuahua RD over Blackjack CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1985.

What condition is Chihuahua RD over Blackjack 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 November 2023.

How much traffic does Chihuahua RD over Blackjack CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Chihuahua RD over Blackjack CR?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 22 ft wide.

Who owns Chihuahua RD over Blackjack CR?

It is owned by the County Highway Agency.