US Bridges

C70 330th ST over White Fox Creek

Good

Wright County, Iowa · 090253501 · Structure no. 000000000356941

Built
2014
11 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
1,168
2021 count
Owner
County
County Highway Agency

About this bridge

C70 330th ST over White Fox Creek is a concrete continuous slab carrying C70 330th ST over White Fox Creek in Wright County, Iowa. It was built in 2014, so it is 11 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 1,168 vehicles a day, roughly 16% of them trucks, projected to reach 1,168 by 2043. The structure is 101 ft (30.8 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesC70 330th ST
CrossesWhite Fox Creek
Location090253501
RouteCounty Highway 0
CountyWright County
StateIowa
Coordinates42.57208, -93.76953
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,168 (2021)
Projected traffic1,168 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C70 330th ST over White Fox Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is C70 330th ST over White Fox 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 2023.

How much traffic does C70 330th ST over White Fox Creek carry?

About 1,168 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is C70 330th ST over White Fox Creek?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns C70 330th ST over White Fox Creek?

It is owned by the County Highway Agency.