US Bridges

US 75 over Dry Creek

Good

Plymouth County, Iowa · 1.9 Mi. N of Jct. SR C60 · Structure no. 000000000039442

Built
2023
2 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
14,000
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Dry Creek is a concrete continuous culvert carrying US 75 over Dry Creek in Plymouth County, Iowa. It was built in 2023, so it is 2 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 14,000 vehicles a day, roughly 19% of them trucks, projected to reach 14,000 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 75
CrossesDry Creek
Location1.9 Mi. N of Jct. SR C60
RouteU.S. Route 75
StateIowa
Coordinates42.65359, -96.28311
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2022)
Projected traffic14,000 by 2044
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 75 over Dry Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is US 75 over Dry 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 April 2024.

How much traffic does US 75 over Dry Creek carry?

About 14,000 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is US 75 over Dry Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns US 75 over Dry Creek?

It is owned by the State Highway Agency.