US Bridges

Calico RD over Locust CR

Good

Linn County, Missouri · S 27 T 59 N R 21 W · Structure no. 30831

Built
2004
21 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
316 ft
3 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

Calico RD over Locust CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Calico RD over Locust CR in Linn County, Missouri. It was built in 2004, so it is 21 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2044. The structure is 316 ft (96.3 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCalico RD
CrossesLocust CR
LocationS 27 T 59 N R 21 W
RouteCounty Highway 246
Coordinates39.89615, -93.23641
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.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating50.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span110 ft (33.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic28 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Calico RD over Locust CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Calico RD over Locust 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 December 2024.

How much traffic does Calico RD over Locust CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Calico RD over Locust CR?

The structure is 316 ft (96.3 m) long with a longest span of 110 ft (33.5 m) and a deck 25 ft wide.

Who owns Calico RD over Locust CR?

It is owned by the County Highway Agency.