US Bridges

State ST over Old Mans Creek

Good

Iowa County, Iowa · State ST O Old Man Creek · Structure no. 000000000012706

Built
2021
4 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
2,220
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

State ST over Old Mans Creek is a prestressed concrete stringer/multi-beam or girder carrying State ST over Old Mans Creek in Iowa County, Iowa. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,220 vehicles a day, projected to reach 2,220 by 2043. The structure is 197 ft (60 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesState ST
CrossesOld Mans Creek
LocationState ST O Old Man Creek
RouteCity Street 0
CountyIowa County
StateIowa
Coordinates41.66156, -92.00098
Functional classRural Major Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length197 ft (60 m)
Longest span82 ft (25 m)
Deck width46 ft (14 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,220 (2022)
Projected traffic2,220 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State ST over Old Mans Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is State ST over Old Mans 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 April 2023.

How much traffic does State ST over Old Mans Creek carry?

About 2,220 vehicles per day (2022 count).

How long is State ST over Old Mans Creek?

The structure is 197 ft (60 m) long with a longest span of 82 ft (25 m) and a deck 46 ft wide.

Who owns State ST over Old Mans Creek?

It is owned by the City or Municipal Highway Agency.