US Bridges

1100th Street over Keg Creek

Good

Shelby County, Iowa · 079401303 · Structure no. 000000000305771

Built
2024
1 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
2 main spans
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

1100th Street over Keg Creek is a steel stringer/multi-beam or girder carrying 1100th Street over Keg Creek in Shelby County, Iowa. It was built in 2024, so it is 1 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 10 vehicles a day, roughly 20% of them trucks, projected to reach 10 by 2044. The structure is 74 ft (22.6 m) long and 24 ft wide.

Carries1100th Street
CrossesKeg Creek
Location079401303
RouteCounty Highway 0
StateIowa
Coordinates41.66038, -95.44478
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2 (+1 approach)
Design loadHS 20 + Mod
Structure length74 ft (22.6 m)
Longest span50 ft (15.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic10 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 1100th Street over Keg Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is 1100th Street over Keg 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 July 2024.

How much traffic does 1100th Street over Keg Creek carry?

About 10 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is 1100th Street over Keg Creek?

The structure is 74 ft (22.6 m) long with a longest span of 50 ft (15.1 m) and a deck 24 ft wide.

Who owns 1100th Street over Keg Creek?

It is owned by the County Highway Agency.