US Bridges

360th ST over Sugar Creek

Good

Dallas County, Iowa · 078262605 · Structure no. 000000000022071

Built
2017
8 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
204 ft
3 main spans
Daily traffic
2,628
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

360th ST over Sugar Creek is a concrete stringer/multi-beam or girder carrying 360th ST over Sugar Creek in Dallas County, Iowa. It was built in 2017, so it is 8 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 2,628 vehicles a day, roughly 21% of them trucks, projected to reach 2,628 by 2043. The structure is 204 ft (62.2 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries360th ST
CrossesSugar Creek
Location078262605
RouteCity Street 0
CountyDallas County
StateIowa
Coordinates41.53387, -93.82616
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length204 ft (62.2 m)
Longest span92 ft (28 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,628 (2022)
Projected traffic2,628 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 360th ST over Sugar Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is 360th ST over Sugar 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 October 2023.

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

About 2,628 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is 360th ST over Sugar Creek?

The structure is 204 ft (62.2 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns 360th ST over Sugar Creek?

It is owned by the City or Municipal Highway Agency.