US Bridges

Dillon RD over Big CR

FairPosted for load

Cass County, Missouri · S 7 T 45 N R 29 W · Structure no. 17719

Built
1993
32 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
120
2024 count
Owner
County
County Highway Agency

About this bridge

Dillon RD over Big CR is a prestressed concrete tee beam carrying Dillon RD over Big CR in Cass County, Missouri. It was built in 1993, so it is 32 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. Its operating status is: posted for load restriction.

It carries about 120 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2044. The structure is 153 ft (46.6 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesDillon RD
CrossesBig CR
LocationS 7 T 45 N R 29 W
RouteCounty Highway 161
CountyCass County
StateMissouri
Coordinates38.7222, -94.17266
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2024)
Projected traffic192 by 2044
Trucks5%
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 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 Dillon RD over Big CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Dillon RD over Big 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 April 2023.

How much traffic does Dillon RD over Big CR carry?

About 120 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Dillon RD over Big CR?

The structure is 153 ft (46.6 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Dillon RD over Big CR?

It is owned by the County Highway Agency.