US Bridges

Argo RD over Parsons CR

Good

Linn County, Missouri · S 7 T 59 N R 21 W · Structure no. 13454

Built
1992
33 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Argo RD over Parsons CR is a concrete culvert carrying Argo RD over Parsons CR in Linn County, Missouri. It was built in 1992, so it is 33 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesArgo RD
CrossesParsons CR
LocationS 7 T 59 N R 21 W
RouteCounty Highway 39
Coordinates39.93967, -93.29732
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Argo RD over Parsons CR built?

It was built in 1992, making it 33 years old in 2025.

What condition is Argo RD over Parsons 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 December 2024.

How much traffic does Argo RD over Parsons CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Argo RD over Parsons CR?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m).

Who owns Argo RD over Parsons CR?

It is owned by the County Highway Agency.