US Bridges

Hardin RD over Trib of Joachim CR

Fair

Jefferson County, Missouri · S 24 T 39 N R 4 E · Structure no. 21892

Built
1988
37 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
500
2023 count
Owner
County
County Highway Agency

About this bridge

Hardin RD over Trib of Joachim CR is a steel stringer/multi-beam or girder carrying Hardin RD over Trib of Joachim CR in Jefferson County, Missouri. It was built in 1988, so it is 37 years old, younger 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.

It carries about 500 vehicles a day, roughly 5% of them trucks, projected to reach 1,000 by 2043. The structure is 45 ft (13.7 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesHardin RD
CrossesTrib of Joachim CR
LocationS 24 T 39 N R 4 E
RouteCounty Highway 317
CountyJefferson County
StateMissouri
Coordinates38.07569, -90.5392
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.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.5 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic1,000 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Hardin RD over Trib of Joachim CR built?

It was built in 1988, making it 37 years old in 2025.

What condition is Hardin RD over Trib of Joachim 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 February 2025.

How much traffic does Hardin RD over Trib of Joachim CR carry?

About 500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Hardin RD over Trib of Joachim CR?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 26 ft wide.

Who owns Hardin RD over Trib of Joachim CR?

It is owned by the County Highway Agency.