US Bridges

Sharp Street over Keg Creek

Fair

Mills County, Iowa · 000000000 · Structure no. 000000000035810

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
416 ft
3 main spans
Daily traffic
3,979
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sharp Street over Keg Creek is a steel continuous girder and floorbeam system carrying Sharp Street over Keg Creek in Mills County, Iowa. It was built in 1960, so it is 65 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 5 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 3,979 vehicles a day, projected to reach 3,979 by 2043. The structure is 416 ft (126.8 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSharp Street
CrossesKeg Creek
Location000000000
RouteCity Street 0
CountyMills County
StateIowa
Coordinates41.04694, -95.73693
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length416 ft (126.8 m)
Longest span164 ft (50 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,979 (2021)
Projected traffic3,979 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sharp Street over Keg Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Sharp Street 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 February 2023.

How much traffic does Sharp Street over Keg Creek carry?

About 3,979 vehicles per day (2021 count).

How long is Sharp Street over Keg Creek?

The structure is 416 ft (126.8 m) long with a longest span of 164 ft (50 m) and a deck 43 ft wide.

Who owns Sharp Street over Keg Creek?

It is owned by the City or Municipal Highway Agency.