US Bridges

US 75 over Burr Oak Creek

Good

Sioux County, Iowa · 3.1 MI N of N JCT US 18 · Structure no. 000000000048441

Built
2011
14 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
2,610
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 over Burr Oak Creek is a concrete continuous slab carrying US 75 over Burr Oak Creek in Sioux County, Iowa. It was built in 2011, so it is 14 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 2,610 vehicles a day, roughly 24% of them trucks, projected to reach 2,610 by 2042. The structure is 151 ft (46 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 75
CrossesBurr Oak Creek
Location3.1 MI N of N JCT US 18
RouteU.S. Route 75
StateIowa
Coordinates43.24514, -96.17759
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (46 m)
Longest span59 ft (18 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,610 (2022)
Projected traffic2,610 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 75 over Burr Oak Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is US 75 over Burr Oak 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 US 75 over Burr Oak Creek carry?

About 2,610 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 75 over Burr Oak Creek?

The structure is 151 ft (46 m) long with a longest span of 59 ft (18 m) and a deck 43 ft wide.

Who owns US 75 over Burr Oak Creek?

It is owned by the State Highway Agency.