US Bridges

Old Highway Pp over String CR

Fair

Moniteau County, Missouri · S 20 T 45 N R 14 W · Structure no. 34390

Built
1961
64 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
570
2024 count
Owner
County
County Highway Agency

About this bridge

Old Highway Pp over String CR is a concrete continuous culvert carrying Old Highway Pp over String CR in Moniteau County, Missouri. It was built in 1961, so it is 64 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 570 vehicles a day, roughly 11% of them trucks, projected to reach 798 by 2044. The structure is 26 ft (7.8 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesOld Highway Pp
CrossesString CR
LocationS 20 T 45 N R 14 W
RouteCounty Highway 0
CountyMoniteau County
StateMissouri
Coordinates38.63444, -92.47028
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating16.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.8 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2024)
Projected traffic798 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Old Highway Pp over String CR built?

It was built in 1961, making it 64 years old in 2025.

What condition is Old Highway Pp over String CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Old Highway Pp over String CR carry?

About 570 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Old Highway Pp over String CR?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns Old Highway Pp over String CR?

It is owned by the County Highway Agency.