US Bridges

US 275 & Ia 92 over Missouri River and RR

Good

Pottawattamie County, Iowa · South Omaha · Structure no. 000000000043571

Built
2010
15 years old
Condition
Good
inspected June 2022
Type
Truss - Thru
Steel
Length
4,297 ft
1 main span
Daily traffic
11,100
2022 count
Owner
State
State Highway Agency

About this bridge

US 275 & Ia 92 over Missouri River and RR is a steel truss - thru carrying US 275 & Ia 92 over Missouri River and RR in Pottawattamie County, Iowa. It was built in 2010, so it is 15 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 11,100 vehicles a day, roughly 6% of them trucks, projected to reach 11,100 by 2042. The structure is 4,297 ft (1,309.7 m) long and 88 ft wide.

Location

Open in Google Maps
CarriesUS 275 & Ia 92
CrossesMissouri River and RR
LocationSouth Omaha
RouteU.S. Route 275
CountyPottawattamie County
StateIowa
Coordinates41.20879, -95.91789
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+22 approach)
Design loadHL 93
Structure length4,297 ft (1,309.7 m)
Longest span624 ft (190.2 m)
Deck width88 ft (26.7 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deck22 ft (6.7 m)

Traffic and service

Average daily traffic11,100 (2022)
Projected traffic11,100 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 275 & Ia 92 over Missouri River and RR built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 275 & Ia 92 over Missouri River and RR 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 June 2022.

How much traffic does US 275 & Ia 92 over Missouri River and RR carry?

About 11,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US 275 & Ia 92 over Missouri River and RR?

The structure is 4,297 ft (1,309.7 m) long with a longest span of 624 ft (190.2 m) and a deck 88 ft wide.

Who owns US 275 & Ia 92 over Missouri River and RR?

It is owned by the State Highway Agency.