US Bridges

Ia 57 over Drainage Ditch

Fair

Butler County, Iowa · 0.1 Mi. E of E JCT SR T25 · Structure no. 000000000016400

Built
1924
101 years old, rebuilt 1962
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
2,480
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 57 over Drainage Ditch is a steel stringer/multi-beam or girder carrying Ia 57 over Drainage Ditch in Butler County, Iowa. It was built in 1924 and reconstructed in 1962, so it is 101 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 2,480 vehicles a day, roughly 8% of them trucks, projected to reach 2,480 by 2043. The structure is 35 ft (10.7 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 57
CrossesDrainage Ditch
Location0.1 Mi. E of E JCT SR T25
RouteState Highway 57
CountyButler County
StateIowa
Coordinates42.57779, -92.84727
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,480 (2023)
Projected traffic2,480 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 57 over Drainage Ditch built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1962.

What condition is Ia 57 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 July 2024.

How much traffic does Ia 57 over Drainage Ditch carry?

About 2,480 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ia 57 over Drainage Ditch?

The structure is 35 ft (10.7 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns Ia 57 over Drainage Ditch?

It is owned by the State Highway Agency.