US Bridges

Ia 188 over Dry Run Creek

Fair

Butler County, Iowa · 3.4 Mi. W of Jct. US 218 · Structure no. 000000000016770

Built
1959
66 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
490
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 188 over Dry Run Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 188 over Dry Run Creek in Butler County, Iowa. It was built in 1959, so it is 66 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 490 vehicles a day, roughly 16% of them trucks, projected to reach 490 by 2042. The structure is 145 ft (44.2 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIa 188
CrossesDry Run Creek
Location3.4 Mi. W of Jct. US 218
RouteState Highway 188
CountyButler County
StateIowa
Coordinates42.84725, -92.61216
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating31.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span56 ft (17.1 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2022)
Projected traffic490 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 188 over Dry Run Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Ia 188 over Dry Run 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 March 2023.

How much traffic does Ia 188 over Dry Run Creek carry?

About 490 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Ia 188 over Dry Run Creek?

The structure is 145 ft (44.2 m) long with a longest span of 56 ft (17.1 m) and a deck 36 ft wide.

Who owns Ia 188 over Dry Run Creek?

It is owned by the State Highway Agency.