US Bridges

County Road over Panther Creek

Fair

Dallas County, Iowa · 079280904 · Structure no. 000000000131720

Built
1961
64 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
2 main spans
Daily traffic
46
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Panther Creek is a steel stringer/multi-beam or girder carrying County Road over Panther Creek in Dallas County, Iowa. It was built in 1961, so it is 64 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 46 vehicles a day, roughly 28% of them trucks, projected to reach 46 by 2043. The structure is 83 ft (25.3 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road
CrossesPanther Creek
Location079280904
RouteCounty Highway 0
CountyDallas County
StateIowa
Coordinates41.66001, -94.11554
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.1 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length83 ft (25.3 m)
Longest span41 ft (12.5 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2022)
Projected traffic46 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 County Road over Panther Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is County Road over Panther Creek 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 November 2023.

How much traffic does County Road over Panther Creek carry?

About 46 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is County Road over Panther Creek?

The structure is 83 ft (25.3 m) long with a longest span of 41 ft (12.5 m) and a deck 20 ft wide.

Who owns County Road over Panther Creek?

It is owned by the County Highway Agency.