US Bridges

SE Ajax RD over Whitehead CR

Good

Buchanan County, Missouri · S 34 T 57 N R 35 W · Structure no. 29269

Built
2002
23 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
1 main span
Daily traffic
150
2024 count
Owner
County
County Highway Agency

About this bridge

SE Ajax RD over Whitehead CR is a steel stringer/multi-beam or girder carrying SE Ajax RD over Whitehead CR in Buchanan County, Missouri. It was built in 2002, so it is 23 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 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 173 by 2044. The structure is 100 ft (30.5 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSE Ajax RD
CrossesWhitehead CR
LocationS 34 T 57 N R 35 W
RouteCounty Highway 174
Coordinates39.71728, -94.81504
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating83.3 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span98 ft (29.9 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)
Projected traffic173 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 SE Ajax RD over Whitehead CR built?

It was built in 2002, making it 23 years old in 2025.

What condition is SE Ajax RD over Whitehead 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 January 2023.

How much traffic does SE Ajax RD over Whitehead CR carry?

About 150 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SE Ajax RD over Whitehead CR?

The structure is 100 ft (30.5 m) long with a longest span of 98 ft (29.9 m) and a deck 27 ft wide.

Who owns SE Ajax RD over Whitehead CR?

It is owned by the County Highway Agency.