US Bridges

Cora ST over Elk Creek

Good

Shelby County, Iowa · 020000515 · Structure no. 000000000047931

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
142 ft
3 main spans
Daily traffic
396
2022 count
Owner
County
County Highway Agency

About this bridge

Cora ST over Elk Creek is a concrete stringer/multi-beam or girder carrying Cora ST over Elk Creek in Shelby County, Iowa. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 396 vehicles a day, roughly 18% of them trucks, projected to reach 396 by 2043. The structure is 142 ft (43.2 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCora ST
CrossesElk Creek
Location020000515
RouteCity Street 0
CountyShelby County
StateIowa
Coordinates41.7918, -95.21312
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length142 ft (43.2 m)
Longest span52 ft (15.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic396 (2022)
Projected traffic396 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
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$810 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Cora ST over Elk Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Cora ST over Elk 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 November 2023.

How much traffic does Cora ST over Elk Creek carry?

About 396 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Cora ST over Elk Creek?

The structure is 142 ft (43.2 m) long with a longest span of 52 ft (15.9 m) and a deck 33 ft wide.

Who owns Cora ST over Elk Creek?

It is owned by the County Highway Agency.