US Bridges

342 Avenue over Drainage

Fair

Fremont County, Iowa · 068412204 · Structure no. 000000000159350

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

342 Avenue over Drainage is a steel stringer/multi-beam or girder carrying 342 Avenue over Drainage in Fremont 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 21 vehicles a day, projected to reach 21 by 2043. The structure is 24 ft (7.3 m) long and 24 ft wide.

Location

Open in Google Maps
Carries342 Avenue
CrossesDrainage
Location068412204
RouteCounty Highway 0
CountyFremont County
StateIowa
Coordinates40.6894, -95.53893
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2043
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 342 Avenue over Drainage built?

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

What condition is 342 Avenue over Drainage 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 342 Avenue over Drainage carry?

About 21 vehicles per day (2022 count).

How long is 342 Avenue over Drainage?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns 342 Avenue over Drainage?

It is owned by the County Highway Agency.