US Bridges

235th Ave over Ten Mile Creek

Good

Winneshiek County, Iowa · 235th Ave Madison Twp · Structure no. 000000000347781

Built
2013
12 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Steel
Length
75 ft
1 main span
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

235th Ave over Ten Mile Creek is a steel box beam or girders - multiple carrying 235th Ave over Ten Mile Creek in Winneshiek County, Iowa. It was built in 2013, so it is 12 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49 vehicles a day, projected to reach 49 by 2044. The structure is 75 ft (22.9 m) long and 18 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries235th Ave
CrossesTen Mile Creek
Location235th Ave Madison Twp
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.3321, -91.85724
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span74 ft (22.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 235th Ave over Ten Mile Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is 235th Ave over Ten Mile Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does 235th Ave over Ten Mile Creek carry?

About 49 vehicles per day (2022 count).

How long is 235th Ave over Ten Mile Creek?

The structure is 75 ft (22.9 m) long with a longest span of 74 ft (22.6 m) and a deck 18 ft wide.

Who owns 235th Ave over Ten Mile Creek?

It is owned by the County Highway Agency.