US Bridges

Stange Rd(isu) over Ioway Creek (stange)

Good

Story County, Iowa · 0.1 Mile N of SR 13th ST · Structure no. 000000000501510

Built
1965
60 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
233 ft
3 main spans
Daily traffic
15,397
2022 count
Owner
State
Other State Agency

About this bridge

Stange Rd(isu) over Ioway Creek (stange) is a prestressed concrete stringer/multi-beam or girder carrying Stange Rd(isu) over Ioway Creek (stange) in Story County, Iowa. It was built in 1965, so it is 60 years old, older 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 15,397 vehicles a day, projected to reach 15,397 by 2044. The structure is 233 ft (71 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStange Rd(isu)
CrossesIoway Creek (stange)
Location0.1 Mile N of SR 13th ST
RouteCity Street 0
CountyStory County
StateIowa
Coordinates42.03629, -93.64478
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.4 US tons
Inventory rating18.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length233 ft (71 m)
Longest span77 ft (23.5 m)
Deck width65 ft (19.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,397 (2022)
Projected traffic15,397 by 2044
Trucks0%
Lanes on structure4
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

OwnerOther State 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 Stange Rd(isu) over Ioway Creek (stange) built?

It was built in 1965, making it 60 years old in 2025.

What condition is Stange Rd(isu) over Ioway Creek (stange) 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 November 2024.

How much traffic does Stange Rd(isu) over Ioway Creek (stange) carry?

About 15,397 vehicles per day (2022 count).

How long is Stange Rd(isu) over Ioway Creek (stange)?

The structure is 233 ft (71 m) long with a longest span of 77 ft (23.5 m) and a deck 65 ft wide.

Who owns Stange Rd(isu) over Ioway Creek (stange)?

It is owned by the Other State Agency and maintained by the State Highway Agency.