US Bridges

Local over Clear Creek

PoorPosted for load

Allamakee County, Iowa · 100051404 · Structure no. 000000000063170

Built
1915
110 years old, rebuilt 1962
Condition
Poor
inspected April 2024
Type
Truss - Thru
Steel
Length
72 ft
1 main span
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Clear Creek is a steel truss - thru carrying Local over Clear Creek in Allamakee County, Iowa. It was built in 1915 and reconstructed in 1962, so it is 110 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 other load-capacity restriction.

It carries about 5 vehicles a day, projected to reach 5 by 2044. The structure is 72 ft (21.9 m) long and 19 ft wide.

CarriesLocal
CrossesClear Creek
Location100051404
RouteCounty Highway 0
StateIowa
Coordinates43.4746, -91.41181
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67 US tons
Inventory rating41 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span70 ft (21.3 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2044
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Clear Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1962.

What condition is Local over Clear 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 April 2024.

How much traffic does Local over Clear Creek carry?

About 5 vehicles per day (2022 count).

How long is Local over Clear Creek?

The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 19 ft wide.

Who owns Local over Clear Creek?

It is owned by the County Highway Agency.