US Bridges

County RD 448 over Littleby CR

Good

Audrain County, Missouri · S 26 T 52 N R 8 W · Structure no. 34336

Built
2013
12 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
114 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 448 over Littleby CR is a prestressed concrete tee beam carrying County RD 448 over Littleby CR in Audrain County, Missouri. It was built in 2013, so it is 12 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2043. The structure is 114 ft (34.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty RD 448
CrossesLittleby CR
LocationS 26 T 52 N R 8 W
RouteCounty Highway 363
CountyAudrain County
StateMissouri
Coordinates39.25158, -91.76417
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length114 ft (34.6 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 traffic35 (2023)
Projected traffic44 by 2043
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 County RD 448 over Littleby CR built?

It was built in 2013, making it 12 years old in 2025.

What condition is County RD 448 over Littleby 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 April 2023.

How much traffic does County RD 448 over Littleby CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 448 over Littleby CR?

The structure is 114 ft (34.6 m) long with a longest span of 110 ft (33.5 m) and a deck 25 ft wide.

Who owns County RD 448 over Littleby CR?

It is owned by the County Highway Agency.