US Bridges

100 ST over W High CR

Good

Atchison County, Missouri · S 31 T 67 N R 40 W · Structure no. 14730

Built
2001
24 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

100 ST over W High CR is a steel stringer/multi-beam or girder carrying 100 ST over W High CR in Atchison County, Missouri. It was built in 2001, so it is 24 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2044. The structure is 71 ft (21.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries100 ST
CrossesW High CR
LocationS 31 T 67 N R 40 W
RouteCounty Highway 74
Coordinates40.58168, -95.4841
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: 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 rating66.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span70 ft (21.3 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic58 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 100 ST over W High CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is 100 ST over W High CR 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 February 2024.

How much traffic does 100 ST over W High CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 100 ST over W High CR?

The structure is 71 ft (21.6 m) long with a longest span of 70 ft (21.3 m) and a deck 25 ft wide.

Who owns 100 ST over W High CR?

It is owned by the County Highway Agency.