US Bridges

FM Pole RD over Middle Platte River

Good

Union County, Iowa · 072300806 · Structure no. 000000000325871

Built
1993
32 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
568
2022 count
Owner
County
County Highway Agency

About this bridge

FM Pole RD over Middle Platte River is a concrete continuous culvert carrying FM Pole RD over Middle Platte River in Union County, Iowa. It was built in 1993, so it is 32 years old, younger than the Iowa average of 45.5 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 568 vehicles a day, roughly 11% of them trucks, projected to reach 568 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM Pole RD
CrossesMiddle Platte River
Location072300806
RouteCounty Highway 0
StateIowa
Coordinates41.04888, -94.33721
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic568 (2022)
Projected traffic568 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Pole RD over Middle Platte River built?

It was built in 1993, making it 32 years old in 2025.

What condition is FM Pole RD over Middle Platte River 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 October 2022.

How much traffic does FM Pole RD over Middle Platte River carry?

About 568 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FM Pole RD over Middle Platte River?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns FM Pole RD over Middle Platte River?

It is owned by the County Highway Agency.