US Bridges

Is 29 S over Nodaway Rvr

Fair

Holt County, Missouri · S 36 T 60 N R 37 W · Structure no. 1059

Built
1966
59 years old, rebuilt 2017
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
914 ft
3 main spans
Daily traffic
9,040
2024 count
Owner
State
State Highway Agency

About this bridge

Is 29 S over Nodaway Rvr is a steel continuous stringer/multi-beam or girder carrying Is 29 S over Nodaway Rvr in Holt County, Missouri. It was built in 1966 and reconstructed in 2017, so it is 59 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 9,040 vehicles a day, roughly 34% of them trucks, projected to reach 18,984 by 2044. The structure is 914 ft (278.6 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 29 S
CrossesNodaway Rvr
LocationS 36 T 60 N R 37 W
RouteInterstate 29
Coordinates39.97153, -94.99619
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+9 approach)
Design loadHS 20 + Mod
Structure length914 ft (278.6 m)
Longest span140 ft (42.7 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,040 (2024)
Projected traffic18,984 by 2044
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 29 S over Nodaway Rvr built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2017.

What condition is Is 29 S 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 November 2023.

How much traffic does Is 29 S over Nodaway Rvr carry?

About 9,040 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is Is 29 S over Nodaway Rvr?

The structure is 914 ft (278.6 m) long with a longest span of 140 ft (42.7 m) and a deck 34 ft wide.

Who owns Is 29 S over Nodaway Rvr?

It is owned by the State Highway Agency.