US Bridges

Dairy ST over Little Crk

Good

Mercer County, Missouri · S 6 T 65 N R 25 W · Structure no. 34073

Built
2012
13 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Dairy ST over Little Crk is a steel stringer/multi-beam or girder carrying Dairy ST over Little Crk in Mercer County, Missouri. It was built in 2012, so it is 13 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 66 ft (20.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDairy ST
CrossesLittle Crk
LocationS 6 T 65 N R 25 W
RouteCounty Highway 18
Coordinates40.47283, -93.75557
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dairy ST over Little Crk built?

It was built in 2012, making it 13 years old in 2025.

What condition is Dairy ST over Little Crk 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 2024.

How much traffic does Dairy ST over Little Crk carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Dairy ST over Little Crk?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 25 ft wide.

Who owns Dairy ST over Little Crk?

It is owned by the County Highway Agency.