US Bridges

Rt D E over Willow Br

Fair

Mercer County, Missouri · S 29 T 64 N R 24 W · Structure no. 8597

Built
1930
95 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
196
2024 count
Owner
State
State Highway Agency

About this bridge

Rt D E over Willow Br is a concrete continuous culvert carrying Rt D E over Willow Br in Mercer 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 fair condition with a lowest component rating of 5 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 196 vehicles a day, roughly 19% of them trucks, projected to reach 245 by 2044. The structure is 29 ft (8.8 m) long and 22 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesRt D E
CrossesWillow Br
LocationS 29 T 64 N R 24 W
RouteState Highway 0D
CountyMercer County
StateMissouri
Coordinates40.31004, -93.63144
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic196 (2024)
Projected traffic245 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt D E over Willow Br built?

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

What condition is Rt D E over Willow Br 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 January 2024.

How much traffic does Rt D E over Willow Br carry?

About 196 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is Rt D E over Willow Br?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 22 ft wide.

Who owns Rt D E over Willow Br?

It is owned by the State Highway Agency.