US Bridges

520th ST over Badger Creek

Good

Cherokee County, Iowa · 092402403 · Structure no. 000000000108961

Built
1987
38 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
170
2022 count
Owner
County
County Highway Agency

About this bridge

520th ST over Badger Creek is a concrete continuous culvert carrying 520th ST over Badger Creek in Cherokee County, Iowa. It was built in 1987, so it is 38 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 170 vehicles a day, projected to reach 170 by 2043. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries520th ST
CrossesBadger Creek
Location092402403
RouteCounty Highway 0
CountyCherokee County
StateIowa
Coordinates42.76388, -95.51984
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2022)
Projected traffic170 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 520th ST over Badger Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is 520th ST over Badger 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 August 2023.

How much traffic does 520th ST over Badger Creek carry?

About 170 vehicles per day (2022 count).

How long is 520th ST over Badger Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns 520th ST over Badger Creek?

It is owned by the County Highway Agency.