US Bridges

Local Road over Klondike Creek

PoorPosted for load

Lyon County, Iowa · 099480104 · Structure no. 000000000230510

Built
1900
125 years old, rebuilt 2003
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
3 main spans
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Klondike Creek is a wood or timber stringer/multi-beam or girder carrying Local Road over Klondike Creek in Lyon County, Iowa. It was built in 1900 and reconstructed in 2003, so it is 125 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 41 vehicles a day, projected to reach 41 by 2044. The structure is 47 ft (14.3 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal Road
CrossesKlondike Creek
Location099480104
RouteCounty Highway 0
StateIowa
Coordinates43.42103, -96.44826
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating32.8 US tons
Inventory rating26.9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic41 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Klondike Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2003.

What condition is Local Road over Klondike 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 July 2024.

How much traffic does Local Road over Klondike Creek carry?

About 41 vehicles per day (2022 count).

How long is Local Road over Klondike Creek?

The structure is 47 ft (14.3 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Local Road over Klondike Creek?

It is owned by the County Highway Agency.