US Bridges

Loc 100th Ave over Black Cat Creek

PoorPosted for load

Kossuth County, Iowa · 096291002 · Structure no. 000000000215320

Built
1964
61 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
46
2022 count
Owner
County
County Highway Agency

About this bridge

Loc 100th Ave over Black Cat Creek is a steel stringer/multi-beam or girder carrying Loc 100th Ave over Black Cat Creek in Kossuth County, Iowa. It was built in 1964, so it is 61 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 46 vehicles a day, projected to reach 46 by 2042. The structure is 69 ft (21.1 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLoc 100th Ave
CrossesBlack Cat Creek
Location096291002
RouteCounty Highway 0
StateIowa
Coordinates43.14975, -94.26591
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.6 US tons
Inventory rating8.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length69 ft (21.1 m)
Longest span68 ft (20.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2022)
Projected traffic46 by 2042
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Loc 100th Ave over Black Cat Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Loc 100th Ave over Black Cat Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Loc 100th Ave over Black Cat Creek carry?

About 46 vehicles per day (2022 count).

How long is Loc 100th Ave over Black Cat Creek?

The structure is 69 ft (21.1 m) long with a longest span of 68 ft (20.7 m) and a deck 26 ft wide.

Who owns Loc 100th Ave over Black Cat Creek?

It is owned by the County Highway Agency.