US Bridges

Rt W S over Is 29

Poor

Atchison County, Missouri · S 19 T 63 N R 40 W · Structure no. 2353

Built
1973
52 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
281 ft
2 main spans
Daily traffic
75
2024 count
Owner
State
State Highway Agency

About this bridge

Rt W S over Is 29 is a steel continuous stringer/multi-beam or girder carrying Rt W S over Is 29 in Atchison County, Missouri. It was built in 1973, so it is 52 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 98 by 2044. The structure is 281 ft (85.6 m) long and 38 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRt W S
CrossesIs 29
LocationS 19 T 63 N R 40 W
RouteState Highway 0W
CountyAtchison County
StateMissouri
Coordinates40.26362, -95.45515
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 15
Structure length281 ft (85.6 m)
Longest span99 ft (30.2 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic98 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed16.8 mi (27 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rt W S over Is 29 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Rt W S over Is 29 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Rt W S over Is 29 carry?

About 75 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt W S over Is 29?

The structure is 281 ft (85.6 m) long with a longest span of 99 ft (30.2 m) and a deck 38 ft wide.

Who owns Rt W S over Is 29?

It is owned by the State Highway Agency.