US Bridges

Plant Road C over Long Creek

Fair

Des Moines County, Iowa · Approx. 1900 N. of Rd. I · Structure no. DAPAMCIOW005414

Built
1946
79 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
20
2022 count
Owner
Federal
Army

About this bridge

Plant Road C over Long Creek is a concrete culvert carrying Plant Road C over Long Creek in Des Moines County, Iowa. It was built in 1946, so it is 79 years old, older 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 20 vehicles a day, roughly 3% of them trucks, projected to reach 25 by 2046. The structure is 37 ft (11.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesPlant Road C
CrossesLong Creek
LocationApprox. 1900 N. of Rd. I
CountyDes Moines County
StateIowa
Coordinates40.78758, -91.27106
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 spans3
Design loadUnknown
Structure length37 ft (11.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic25 by 2046
Trucks3%
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

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plant Road C over Long Creek built?

It was built in 1946, making it 79 years old in 2025.

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

About 20 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Plant Road C over Long Creek?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.7 m).

Who owns Plant Road C over Long Creek?

It is owned by the Army.