US Bridges

Ia 461 over Goose Creek

Fair

Scott County, Iowa · 1.3 Mi. N of Jct. US 6 · Structure no. 000000000046950

Built
1951
74 years old, rebuilt 1983
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
17,300
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 461 over Goose Creek is a steel stringer/multi-beam or girder carrying Ia 461 over Goose Creek in Scott County, Iowa. It was built in 1951 and reconstructed in 1983, so it is 74 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,300 vehicles a day, roughly 3% of them trucks, projected to reach 17,300 by 2042. The structure is 48 ft (14.6 m) long and 119 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesIa 461
CrossesGoose Creek
Location1.3 Mi. N of Jct. US 6
RouteState Highway 461
CountyScott County
StateIowa
Coordinates41.5781, -90.57129
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.3 US tons
Inventory rating35.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width119 ft (36.3 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,300 (2022)
Projected traffic17,300 by 2042
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 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 Ia 461 over Goose Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1983.

What condition is Ia 461 over Goose Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does Ia 461 over Goose Creek carry?

About 17,300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Ia 461 over Goose Creek?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 119 ft wide.

Who owns Ia 461 over Goose Creek?

It is owned by the State Highway Agency.