US Bridges

Ia 461 over Ia 22

Good

Scott County, Iowa · Ia 461 over Ia 22 · Structure no. 000000000046871

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
187 ft
3 main spans
Daily traffic
7,600
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 461 over Ia 22 is a prestressed concrete stringer/multi-beam or girder carrying Ia 461 over Ia 22 in Scott County, Iowa. It was built in 2020, so it is 5 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 7,600 vehicles a day, roughly 14% of them trucks, projected to reach 7,600 by 2044. The structure is 187 ft (57 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIa 461
CrossesIa 22
LocationIa 461 over Ia 22
RouteState Highway 461
CountyScott County
StateIowa
Coordinates41.50536, -90.64244
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.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length187 ft (57 m)
Longest span102 ft (31.1 m)
Deck width87 ft (26.6 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,600 (2022)
Projected traffic7,600 by 2044
Trucks14%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ia 461 over Ia 22 built?

It was built in 2020, making it 5 years old in 2025.

What condition is Ia 461 over Ia 22 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 September 2024.

How much traffic does Ia 461 over Ia 22 carry?

About 7,600 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Ia 461 over Ia 22?

The structure is 187 ft (57 m) long with a longest span of 102 ft (31.1 m) and a deck 87 ft wide.

Who owns Ia 461 over Ia 22?

It is owned by the State Highway Agency.