US Bridges

US 75 SB over Outer DR

Good

Woodbury County, Iowa · 3.5 Mi. N of Jct. Ia 12 · Structure no. 000000000606980

Built
2000
25 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
241 ft
3 main spans
Daily traffic
5,600
2022 count
Owner
State
State Highway Agency

About this bridge

US 75 SB over Outer DR is a prestressed concrete stringer/multi-beam or girder carrying US 75 SB over Outer DR in Woodbury County, Iowa. It was built in 2000, so it is 25 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 5,600 vehicles a day, roughly 16% of them trucks, projected to reach 5,600 by 2044. The structure is 241 ft (73.5 m) long and 43 ft wide.

CarriesUS 75 SB
CrossesOuter DR
Location3.5 Mi. N of Jct. Ia 12
RouteU.S. Route 75
StateIowa
Coordinates42.51881, -96.33898
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span86 ft (26.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2022)
Projected traffic5,600 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 SB over Outer DR built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 75 SB over Outer DR 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 December 2024.

How much traffic does US 75 SB over Outer DR carry?

About 5,600 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US 75 SB over Outer DR?

The structure is 241 ft (73.5 m) long with a longest span of 86 ft (26.2 m) and a deck 43 ft wide.

Who owns US 75 SB over Outer DR?

It is owned by the State Highway Agency.