US Bridges

Alps Ave over Weldon Fork Trib

Good

Mercer County, Missouri · S 34 T 67 N R 24 W · Structure no. 29537

Built
2003
22 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Alps Ave over Weldon Fork Trib is a steel stringer/multi-beam or girder carrying Alps Ave over Weldon Fork Trib in Mercer County, Missouri. It was built in 2003, so it is 22 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 40 vehicles a day, roughly 25% of them trucks, projected to reach 44 by 2044. The structure is 96 ft (29.3 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesAlps Ave
CrossesWeldon Fork Trib
LocationS 34 T 67 N R 24 W
RouteCounty Highway 70
Coordinates40.57392, -93.59722
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.5 US tons
Inventory rating36.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span96 ft (29.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic44 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Alps Ave over Weldon Fork Trib built?

It was built in 2003, making it 22 years old in 2025.

What condition is Alps Ave over Weldon Fork Trib 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 2023.

How much traffic does Alps Ave over Weldon Fork Trib carry?

About 40 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Alps Ave over Weldon Fork Trib?

The structure is 96 ft (29.3 m) long with a longest span of 96 ft (29.3 m) and a deck 24 ft wide.

Who owns Alps Ave over Weldon Fork Trib?

It is owned by the County Highway Agency.