US Bridges

Ia 26 over Hayes Lake

Good

Allamakee County, Iowa · 0.2 Mi. S of Jct. SR A26 · Structure no. 000000000013551

Built
1998
27 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
297 ft
6 main spans
Daily traffic
1,540
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 26 over Hayes Lake is a concrete continuous slab carrying Ia 26 over Hayes Lake in Allamakee County, Iowa. It was built in 1998, so it is 27 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 1,540 vehicles a day, roughly 8% of them trucks, projected to reach 1,540 by 2044. The structure is 297 ft (90.5 m) long and 39 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesIa 26
CrossesHayes Lake
Location0.2 Mi. S of Jct. SR A26
RouteState Highway 26
StateIowa
Coordinates43.47814, -91.30141
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.7 US tons
Inventory rating58.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length297 ft (90.5 m)
Longest span53 ft (16.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,540 (2022)
Projected traffic1,540 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 26 over Hayes Lake built?

It was built in 1998, making it 27 years old in 2025.

What condition is Ia 26 over Hayes Lake 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 May 2024.

How much traffic does Ia 26 over Hayes Lake carry?

About 1,540 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ia 26 over Hayes Lake?

The structure is 297 ft (90.5 m) long with a longest span of 53 ft (16.2 m) and a deck 39 ft wide.

Who owns Ia 26 over Hayes Lake?

It is owned by the State Highway Agency.