US Bridges

NE Harris RD over Muddy CR

Fair

DeKalb County, Missouri · S 26 T 60 N R 30 W · Structure no. 17715

Built
1986
39 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

NE Harris RD over Muddy CR is a concrete culvert carrying NE Harris RD over Muddy CR in DeKalb County, Missouri. It was built in 1986, so it is 39 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.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNE Harris RD
CrossesMuddy CR
LocationS 26 T 60 N R 30 W
RouteCounty Highway 161
Coordinates39.98812, -94.2423
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length29 ft (8.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 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 NE Harris RD over Muddy CR built?

It was built in 1986, making it 39 years old in 2025.

What condition is NE Harris RD over Muddy 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 2024.

How much traffic does NE Harris RD over Muddy CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is NE Harris RD over Muddy CR?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (4 m).

Who owns NE Harris RD over Muddy CR?

It is owned by the County Highway Agency.