US Bridges

Brook RD over Parsons CR

Fair

Linn County, Missouri · S 7 T 59 N R 21 W · Structure no. 13504

Built
1994
31 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Brook RD over Parsons CR is a concrete culvert carrying Brook RD over Parsons CR in Linn County, Missouri. It was built in 1994, so it is 31 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 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBrook RD
CrossesParsons CR
LocationS 7 T 59 N R 21 W
RouteCounty Highway 40
CountyLinn County
StateMissouri
Coordinates39.95419, -93.29766
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 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 traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Brook RD over Parsons CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Brook RD over Parsons 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 December 2024.

How much traffic does Brook RD over Parsons CR carry?

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

How long is Brook RD over Parsons CR?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m).

Who owns Brook RD over Parsons CR?

It is owned by the County Highway Agency.