US Bridges

County RD 20 over Trib of Center CR

Poor

Jasper County, Missouri · S 3 T 27 N R 29 W · Structure no. 24721

Built
1930
95 years old
Condition
Poor
inspected December 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
75
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 20 over Trib of Center CR is a concrete culvert carrying County RD 20 over Trib of Center CR in Jasper County, Missouri. It was built in 1930, so it is 95 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 113 by 2044. The structure is 27 ft (8.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty RD 20
CrossesTrib of Center CR
LocationS 3 T 27 N R 29 W
RouteCounty Highway 539
CountyJasper County
StateMissouri
Coordinates37.08899, -94.09411
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic113 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 20 over Trib of Center CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is County RD 20 over Trib of Center CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does County RD 20 over Trib of Center CR carry?

About 75 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 20 over Trib of Center CR?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m) and a deck 26 ft wide.

Who owns County RD 20 over Trib of Center CR?

It is owned by the County Highway Agency.