US Bridges

325 RD over Dry Fork

Good

Polk County, Missouri · S 8 T 34 N R 23 W · Structure no. 37391

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
29
2023 count
Owner
County
County Highway Agency

About this bridge

325 RD over Dry Fork is a concrete culvert carrying 325 RD over Dry Fork in Polk County, Missouri. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29 vehicles a day, roughly 10% of them trucks, projected to reach 42 by 2043. The structure is 36 ft (11.1 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Carries325 RD
CrossesDry Fork
LocationS 8 T 34 N R 23 W
RouteCounty Highway 144
Coordinates37.69428, -93.47559
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating79.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span16 ft (4.9 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2023)
Projected traffic42 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 325 RD over Dry Fork built?

It was built in 2024, making it 1 years old in 2025.

What condition is 325 RD over Dry Fork 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 October 2024.

How much traffic does 325 RD over Dry Fork carry?

About 29 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 325 RD over Dry Fork?

The structure is 36 ft (11.1 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns 325 RD over Dry Fork?

It is owned by the County Highway Agency.