US Bridges

Ia 25 over Drainage Ditch

Fair

Guthrie County, Iowa · 1.2 Mi. S of E Jct. IA141 · Structure no. 000000000026140

Built
1931
94 years old, rebuilt 1990
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
810
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 25 over Drainage Ditch is a steel stringer/multi-beam or girder carrying Ia 25 over Drainage Ditch in Guthrie County, Iowa. It was built in 1931 and reconstructed in 1990, so it is 94 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 810 vehicles a day, roughly 15% of them trucks, projected to reach 810 by 2044. The structure is 27 ft (8.2 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 25
CrossesDrainage Ditch
Location1.2 Mi. S of E Jct. IA141
RouteState Highway 25
CountyGuthrie County
StateIowa
Coordinates41.83209, -94.49285
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.8 US tons
Inventory rating71.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2022)
Projected traffic810 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 25 over Drainage Ditch built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1990.

What condition is Ia 25 over Drainage Ditch 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 January 2024.

How much traffic does Ia 25 over Drainage Ditch carry?

About 810 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Ia 25 over Drainage Ditch?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 39 ft wide.

Who owns Ia 25 over Drainage Ditch?

It is owned by the State Highway Agency.