US Bridges

FM SW Mckinley over Frink Creek

PoorClosed to traffic

Polk County, Iowa · 078252500 · Structure no. 000000000280940

Built
1937
88 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
246
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FM SW Mckinley over Frink Creek is a steel stringer/multi-beam or girder carrying FM SW Mckinley over Frink Creek in Polk County, Iowa. It was built in 1937, so it is 88 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 0 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: closed to all traffic.

It carries about 246 vehicles a day, roughly 4% of them trucks, projected to reach 246 by 2043. The structure is 45 ft (13.7 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM SW Mckinley
CrossesFrink Creek
Location078252500
RouteCity Street 0
StateIowa
Coordinates41.54104, -93.67809
Functional classUrban 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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2023)
Projected traffic246 by 2043
Trucks4%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM SW Mckinley over Frink Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is FM SW Mckinley over Frink 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 2023.

How much traffic does FM SW Mckinley over Frink Creek carry?

About 246 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is FM SW Mckinley over Frink Creek?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns FM SW Mckinley over Frink Creek?

It is owned by the City or Municipal Highway Agency.