US Bridges

Loc 80th Ave over Calamus Creek

Fair

Kossuth County, Iowa · 097291702 · Structure no. 000000000215992

Built
1991
34 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

Loc 80th Ave over Calamus Creek is a prestressed concrete tee beam carrying Loc 80th Ave over Calamus Creek in Kossuth County, Iowa. It was built in 1991, so it is 34 years old, younger 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLoc 80th Ave
CrossesCalamus Creek
Location097291702
RouteCounty Highway 0
CountyKossuth County
StateIowa
Coordinates43.22189, -94.30629
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.1 US tons
Inventory rating44.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic15 by 2043
Trucks0%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Loc 80th Ave over Calamus Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Loc 80th Ave over Calamus 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 Loc 80th Ave over Calamus Creek carry?

About 15 vehicles per day (2021 count).

How long is Loc 80th Ave over Calamus Creek?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 24 ft wide.

Who owns Loc 80th Ave over Calamus Creek?

It is owned by the County Highway Agency.