US Bridges

County RD 556 over Br of Mid Lick CR

Good

Audrain County, Missouri · S 12 T 52 N R 7 W · Structure no. 23819

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Slab
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 556 over Br of Mid Lick CR is a prestressed concrete slab carrying County RD 556 over Br of Mid Lick CR in Audrain County, Missouri. It was built in 1996, so it is 29 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 63 by 2043. The structure is 35 ft (10.7 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD 556
CrossesBr of Mid Lick CR
LocationS 12 T 52 N R 7 W
RouteCounty Highway 435
CountyAudrain County
StateMissouri
Coordinates39.29569, -91.64167
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating80.4 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic63 by 2043
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 County RD 556 over Br of Mid Lick CR built?

It was built in 1996, making it 29 years old in 2025.

What condition is County RD 556 over Br of Mid Lick 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 March 2023.

How much traffic does County RD 556 over Br of Mid Lick CR carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 556 over Br of Mid Lick CR?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 25 ft wide.

Who owns County RD 556 over Br of Mid Lick CR?

It is owned by the County Highway Agency.