US Bridges

County RD 361 over Dillon CR

FairPosted for load

Andrew County, Missouri · S 4 T 58 N R 35 W · Structure no. 22539

Built
1976
49 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 361 over Dillon CR is a steel stringer/multi-beam or girder carrying County RD 361 over Dillon CR in Andrew County, Missouri. It was built in 1976, so it is 49 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 71 ft (21.6 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty RD 361
CrossesDillon CR
LocationS 4 T 58 N R 35 W
RouteCounty Highway 361
CountyAndrew County
StateMissouri
Coordinates39.86477, -94.82663
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating24.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadOther
Structure length71 ft (21.6 m)
Longest span45 ft (13.7 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic40 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$370,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 361 over Dillon CR built?

It was built in 1976, making it 49 years old in 2025.

What condition is County RD 361 over Dillon 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 2023.

How much traffic does County RD 361 over Dillon CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 361 over Dillon CR?

The structure is 71 ft (21.6 m) long with a longest span of 45 ft (13.7 m) and a deck 20 ft wide.

Who owns County RD 361 over Dillon CR?

It is owned by the County Highway Agency.