US Bridges

I39 NB Ramp over Linden RD

Good

Winnebago County, Illinois · Over Linden RD · Structure no. 101021200000000

Built
2024
1 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
161 ft
1 main span
Daily traffic
12,600
2023 count
Owner
State
State Highway Agency

About this bridge

I39 NB Ramp over Linden RD is a concrete stringer/multi-beam or girder carrying I39 NB Ramp over Linden RD in Winnebago County, Illinois. It was built in 2024, so it is 1 years old, younger than the Illinois average of 45.3 years.

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

It carries about 12,600 vehicles a day, roughly 38% of them trucks, projected to reach 12,600 by 2046. The structure is 161 ft (49.2 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI39 NB Ramp
CrossesLinden RD
LocationOver Linden RD
RouteInterstate 39
Coordinates42.21689, -89.01042
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating51 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length161 ft (49.2 m)
Longest span0 ft (0 m)
Deck width57 ft (17.3 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,600 (2023)
Projected traffic12,600 by 2046
Trucks38%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I39 NB Ramp over Linden RD built?

It was built in 2024, making it 1 years old in 2025.

What condition is I39 NB Ramp over Linden RD 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 I39 NB Ramp over Linden RD carry?

About 12,600 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is I39 NB Ramp over Linden RD?

The structure is 161 ft (49.2 m) long and a deck 57 ft wide.

Who owns I39 NB Ramp over Linden RD?

It is owned by the State Highway Agency.