US Bridges

Harmon RD over Fourche Renault CR

Good

Washington County, Missouri · S 24 T 37 N R 1 E · Structure no. 36939

Built
2022
3 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
35 ft
1 main span
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

Harmon RD over Fourche Renault CR is a concrete slab carrying Harmon RD over Fourche Renault CR in Washington County, Missouri. It was built in 2022, so it is 3 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2043. The structure is 35 ft (10.7 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHarmon RD
CrossesFourche Renault CR
LocationS 24 T 37 N R 1 E
RouteCounty Highway 64
CountyWashington County
StateMissouri
Coordinates37.91111, -90.88639
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating65.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic12 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harmon RD over Fourche Renault CR built?

It was built in 2022, making it 3 years old in 2025.

What condition is Harmon RD over Fourche Renault CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Harmon RD over Fourche Renault CR carry?

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

How long is Harmon RD over Fourche Renault CR?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 22 ft wide.

Who owns Harmon RD over Fourche Renault CR?

It is owned by the County Highway Agency.