US Bridges

County RD 400 over Nodaway Rvr

Fair

Andrew County, Missouri · S 19 T 59 N R 36 W · Structure no. 23287

Built
1986
39 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
373 ft
3 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 400 over Nodaway Rvr is a steel continuous stringer/multi-beam or girder carrying County RD 400 over Nodaway Rvr in Andrew 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 230 by 2044. The structure is 373 ft (113.7 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty RD 400
CrossesNodaway Rvr
LocationS 19 T 59 N R 36 W
RouteCounty Highway 400
CountyAndrew County
StateMissouri
Coordinates39.91075, -94.9763
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length373 ft (113.7 m)
Longest span145 ft (44.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic230 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 400 over Nodaway Rvr built?

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

What condition is County RD 400 over Nodaway Rvr 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 400 over Nodaway Rvr carry?

About 200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 400 over Nodaway Rvr?

The structure is 373 ft (113.7 m) long with a longest span of 145 ft (44.2 m) and a deck 27 ft wide.

Who owns County RD 400 over Nodaway Rvr?

It is owned by the County Highway Agency.