US Bridges

Plant Road P over Spring Creek

Fair

Des Moines County, Iowa · Approx. 8700 E. of Rd. H · Structure no. DAPAMCIOW005410

Built
1946
79 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
5
2014 count
Owner
Federal
Army

About this bridge

Plant Road P over Spring Creek is a concrete arch - deck carrying Plant Road P over Spring 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 5 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 5 vehicles a day, roughly 2% of them trucks, projected to reach 10 by 2046. The structure is 40 ft (12.2 m) long and 58 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesPlant Road P
CrossesSpring Creek
LocationApprox. 8700 E. of Rd. H
CountyDes Moines County
StateIowa
Coordinates40.79715, -91.18697
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width58 ft (17.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2014)
Projected traffic10 by 2046
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plant Road P over Spring Creek built?

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

What condition is Plant Road P over Spring 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 P over Spring Creek carry?

About 5 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Plant Road P over Spring Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 58 ft wide.

Who owns Plant Road P over Spring Creek?

It is owned by the Army.