US Bridges

Foothill Ave over Big Cedar River

Good

Mitchell County, Iowa · 099183602 · Structure no. 000000000248750

Built
1950
75 years old, rebuilt 2010
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
292 ft
4 main spans
Daily traffic
1,021
2022 count
Owner
County
County Highway Agency

About this bridge

Foothill Ave over Big Cedar River is a steel continuous stringer/multi-beam or girder carrying Foothill Ave over Big Cedar River in Mitchell County, Iowa. It was built in 1950 and reconstructed in 2010, so it is 75 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 1,021 vehicles a day, roughly 15% of them trucks, projected to reach 1,021 by 2043. The structure is 292 ft (89 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesFoothill Ave
CrossesBig Cedar River
Location099183602
RouteCounty Highway 0
StateIowa
Coordinates43.35515, -92.92524
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.5 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length292 ft (89 m)
Longest span82 ft (25 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,021 (2022)
Projected traffic1,021 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Foothill Ave over Big Cedar River built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2010.

What condition is Foothill Ave over Big Cedar River 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 December 2023.

How much traffic does Foothill Ave over Big Cedar River carry?

About 1,021 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Foothill Ave over Big Cedar River?

The structure is 292 ft (89 m) long with a longest span of 82 ft (25 m) and a deck 35 ft wide.

Who owns Foothill Ave over Big Cedar River?

It is owned by the County Highway Agency.