US Bridges

Plant Road I over Long Creek

Fair

Des Moines County, Iowa · Approx. 1000 SW of RD M · Structure no. DAPAMCIOW005486

Built
2009
16 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
58 ft
4 main spans
Daily traffic
15
2022 count
Owner
Federal
Army

About this bridge

Plant Road I over Long Creek is a concrete culvert carrying Plant Road I over Long Creek in Des Moines County, Iowa. It was built in 2009, so it is 16 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 15 vehicles a day, roughly 3% of them trucks, projected to reach 20 by 2046. The structure is 58 ft (17.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPlant Road I
CrossesLong Creek
LocationApprox. 1000 SW of RD M
StateIowa
Coordinates40.78234, -91.25052
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length58 ft (17.8 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic20 by 2046
Trucks3%
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

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$7,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plant Road I over Long Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Plant Road I over Long Creek 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 Plant Road I over Long Creek carry?

About 15 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Plant Road I over Long Creek?

The structure is 58 ft (17.8 m) long with a longest span of 14 ft (4.2 m).

Who owns Plant Road I over Long Creek?

It is owned by the Army.