US Bridges

D59 360th ST over Creek

Good

Sac County, Iowa · 086371601 · Structure no. 000000000299381

Built
2014
11 years old
Condition
Good
inspected August 2022
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
330
2022 count
Owner
County
County Highway Agency

About this bridge

D59 360th ST over Creek is a concrete continuous culvert carrying D59 360th ST over Creek in Sac 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 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 330 vehicles a day, roughly 16% of them trucks, projected to reach 330 by 2043. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesD59 360th ST
CrossesCreek
Location086371601
RouteCounty Highway 0
StateIowa
Coordinates42.26852, -95.15315
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2022
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 alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating44.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2022)
Projected traffic330 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was D59 360th ST over Creek built?

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

What condition is D59 360th ST over 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 2022.

How much traffic does D59 360th ST over Creek carry?

About 330 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is D59 360th ST over Creek?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m).

Who owns D59 360th ST over Creek?

It is owned by the County Highway Agency.