US Bridges

IRR BIA RTE 16 over Raspberry River

Fair

Bayfield County, Wisconsin · 8KM North of Redcliff · Structure no. 00000000000F329

Built
2000
25 years old
Condition
Fair
inspected September 2024
Type
Frame
Concrete
Length
49 ft
1 main span
Daily traffic
100
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 16 over Raspberry River is a concrete frame carrying IRR BIA RTE 16 over Raspberry River in Bayfield County, Wisconsin. It was built in 2000, so it is 25 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2044. The structure is 49 ft (14.8 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIRR BIA RTE 16
CrossesRaspberry River
Location8KM North of Redcliff
RouteFederal Lands Road 16
Coordinates46.83889, -90.83
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.5 US tons
Inventory rating39.6 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.8 m)
Longest span46 ft (14 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic150 by 2044
Trucks5%
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

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR BIA RTE 16 over Raspberry River built?

It was built in 2000, making it 25 years old in 2025.

What condition is IRR BIA RTE 16 over Raspberry River 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 September 2024.

How much traffic does IRR BIA RTE 16 over Raspberry River carry?

About 100 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 16 over Raspberry River?

The structure is 49 ft (14.8 m) long with a longest span of 46 ft (14 m) and a deck 26 ft wide.

Who owns IRR BIA RTE 16 over Raspberry River?

It is owned by the Bureau of Indian Affairs.