US Bridges

Lake Ave over West Fork Floyd River

Good

Plymouth County, Iowa · 093450704 · Structure no. 000000000276601

Built
1999
26 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

Lake Ave over West Fork Floyd River is a concrete continuous slab carrying Lake Ave over West Fork Floyd River in Plymouth County, Iowa. It was built in 1999, so it is 26 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26 vehicles a day, roughly 12% of them trucks, projected to reach 26 by 2042. The structure is 91 ft (27.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLake Ave
CrossesWest Fork Floyd River
Location093450704
RouteCounty Highway 0
StateIowa
Coordinates42.88132, -96.19539
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.7 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Lake Ave over West Fork Floyd River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Lake Ave over West Fork Floyd River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Lake Ave over West Fork Floyd River carry?

About 26 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Lake Ave over West Fork Floyd River?

The structure is 91 ft (27.7 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Lake Ave over West Fork Floyd River?

It is owned by the County Highway Agency.