US Bridges

County RD 100 over Dry CR

Fair

Jasper County, Missouri · S 6 T 29 N R 30 W · Structure no. 17524

Built
1978
47 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
131 ft
3 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 100 over Dry CR is a prestressed concrete tee beam carrying County RD 100 over Dry CR in Jasper County, Missouri. It was built in 1978, so it is 47 years old, older 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2044. The structure is 131 ft (39.9 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD 100
CrossesDry CR
LocationS 6 T 29 N R 30 W
RouteCounty Highway 155
CountyJasper County
StateMissouri
Coordinates37.25754, -94.23468
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length131 ft (39.9 m)
Longest span43 ft (13.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic75 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 County RD 100 over Dry CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is County RD 100 over Dry 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 February 2025.

How much traffic does County RD 100 over Dry CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 100 over Dry CR?

The structure is 131 ft (39.9 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns County RD 100 over Dry CR?

It is owned by the County Highway Agency.