US Bridges

Killdeer over Beaver Dam Creek

PoorPosted for load

Cerro Gordo County, Iowa · 095212602 · Structure no. 000000000105940

Built
1900
125 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
2 main spans
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

Killdeer over Beaver Dam Creek is a steel stringer/multi-beam or girder carrying Killdeer over Beaver Dam Creek in Cerro Gordo County, Iowa. It was built in 1900, 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 3 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 16 vehicles a day, projected to reach 16 by 2044. The structure is 59 ft (18 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKilldeer
CrossesBeaver Dam Creek
Location095212602
RouteCounty Highway 0
StateIowa
Coordinates43.02212, -93.30034
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating28 US tons
Inventory rating20 US tons

Structure

MaterialSteel
DeckOther
Main spans2
Design loadUnknown
Structure length59 ft (18 m)
Longest span29 ft (8.8 m)
Deck width17 ft (5.3 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic16 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 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 Killdeer over Beaver Dam Creek built?

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

What condition is Killdeer over Beaver Dam 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 February 2024.

How much traffic does Killdeer over Beaver Dam Creek carry?

About 16 vehicles per day (2022 count).

How long is Killdeer over Beaver Dam Creek?

The structure is 59 ft (18 m) long with a longest span of 29 ft (8.8 m) and a deck 17 ft wide.

Who owns Killdeer over Beaver Dam Creek?

It is owned by the County Highway Agency.