US Bridges

110th ST over Keg Creek

FairPosted for load

Shelby County, Iowa · 079391801 · Structure no. 000000000305530

Built
1954
71 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

110th ST over Keg Creek is a prestressed concrete channel beam carrying 110th ST over Keg Creek in Shelby County, Iowa. It was built in 1954, so it is 71 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. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 52 ft (15.9 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries110th ST
CrossesKeg Creek
Location079391801
RouteCounty Highway 0
CountyShelby County
StateIowa
Coordinates41.6604, -95.43581
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.3 US tons
Inventory rating21.2 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length52 ft (15.9 m)
Longest span51 ft (15.5 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 110th ST over Keg Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is 110th ST over Keg 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 March 2023.

How much traffic does 110th ST over Keg Creek carry?

About 15 vehicles per day (2022 count).

How long is 110th ST over Keg Creek?

The structure is 52 ft (15.9 m) long with a longest span of 51 ft (15.5 m) and a deck 20 ft wide.

Who owns 110th ST over Keg Creek?

It is owned by the County Highway Agency.