US Bridges

Dayton Ave S over Is 29

Good

Atchison County, Missouri · S 24 T 66 N R 42 W · Structure no. 2047

Built
1971
54 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
246 ft
2 main spans
Daily traffic
54
2024 count
Owner
State
State Highway Agency

About this bridge

Dayton Ave S over Is 29 is a steel continuous stringer/multi-beam or girder carrying Dayton Ave S over Is 29 in Atchison County, Missouri. It was built in 1971, so it is 54 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 54 vehicles a day, roughly 11% of them trucks, projected to reach 70 by 2044. The structure is 246 ft (75 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesDayton Ave S
CrossesIs 29
LocationS 24 T 66 N R 42 W
RouteCounty Highway 0
CountyAtchison County
StateMissouri
Coordinates40.52587, -95.60997
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 15
Structure length246 ft (75 m)
Longest span86 ft (26.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2024)
Projected traffic70 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dayton Ave S over Is 29 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Dayton Ave S over Is 29 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Dayton Ave S over Is 29 carry?

About 54 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Dayton Ave S over Is 29?

The structure is 246 ft (75 m) long with a longest span of 86 ft (26.2 m) and a deck 31 ft wide.

Who owns Dayton Ave S over Is 29?

It is owned by the State Highway Agency.