US Bridges

County RD E-464 over Piper CR

FairPosted for load

Polk County, Missouri · S 21 T 33 N R 22 W · Structure no. 22268

Built
1900
125 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
31 ft
5 main spans
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

County RD E-464 over Piper CR is a concrete continuous slab carrying County RD E-464 over Piper CR in Polk County, Missouri. It was built in 1900, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 87 by 2044. The structure is 31 ft (9.4 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty RD E-464
CrossesPiper CR
LocationS 21 T 33 N R 22 W
RouteCounty Highway 348
CountyPolk County
StateMissouri
Coordinates37.5779, -93.35688
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.8 US tons
Inventory rating9.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length31 ft (9.4 m)
Longest span6 ft (1.8 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic87 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$289,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD E-464 over Piper CR built?

It was built in 1900, making it 125 years old in 2025.

What condition is County RD E-464 over Piper 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 April 2024.

How much traffic does County RD E-464 over Piper CR carry?

About 60 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD E-464 over Piper CR?

The structure is 31 ft (9.4 m) long with a longest span of 6 ft (1.8 m) and a deck 14 ft wide.

Who owns County RD E-464 over Piper CR?

It is owned by the County Highway Agency.