US Bridges

Lrd Airport RD over Iron River

Good

Bayfield County, Wisconsin · 2.5M N JCT Cth B · Structure no. B04003200000000

Built
1981
44 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
280
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Airport RD over Iron River is a prestressed concrete stringer/multi-beam or girder carrying Lrd Airport RD over Iron River in Bayfield County, Wisconsin. It was built in 1981, so it is 44 years old, older than the Wisconsin average of 40.3 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 280 vehicles a day, projected to reach 336 by 2042. The structure is 49 ft (14.8 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesLrd Airport RD
CrossesIron River
Location2.5M N JCT Cth B
RouteCity Street 0
CountyBayfield County
StateWisconsin
Coordinates46.6551, -91.44686
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length49 ft (14.8 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2022)
Projected traffic336 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Lrd Airport RD over Iron River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Lrd Airport RD over Iron 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 August 2024.

How much traffic does Lrd Airport RD over Iron River carry?

About 280 vehicles per day (2022 count).

How long is Lrd Airport RD over Iron River?

The structure is 49 ft (14.8 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns Lrd Airport RD over Iron River?

It is owned by the Town or Township Highway Agency.