US Bridges

East 470th RD over Pomme De Terre Rvr

Good

Polk County, Missouri · S 23 T 33 N R 22 W · Structure no. 35270

Built
2018
7 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
200 ft
3 main spans
Daily traffic
125
2024 count
Owner
County
County Highway Agency

About this bridge

East 470th RD over Pomme De Terre Rvr is a prestressed concrete tee beam carrying East 470th RD over Pomme De Terre Rvr in Polk County, Missouri. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, roughly 10% of them trucks, projected to reach 181 by 2044. The structure is 200 ft (61 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesEast 470th RD
CrossesPomme De Terre Rvr
LocationS 23 T 33 N R 22 W
RouteCounty Highway 349
Coordinates37.56653, -93.31678
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.
Substructure9 ExcellentNo problems noted.
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.4 US tons
Inventory rating51.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length200 ft (61 m)
Longest span85 ft (25.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2024)
Projected traffic181 by 2044
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 East 470th RD over Pomme De Terre Rvr built?

It was built in 2018, making it 7 years old in 2025.

What condition is East 470th RD over Pomme De Terre Rvr 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 2024.

How much traffic does East 470th RD over Pomme De Terre Rvr carry?

About 125 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is East 470th RD over Pomme De Terre Rvr?

The structure is 200 ft (61 m) long with a longest span of 85 ft (25.9 m) and a deck 26 ft wide.

Who owns East 470th RD over Pomme De Terre Rvr?

It is owned by the County Highway Agency.