US Bridges

Lindenwood RD over I-39 & US 51

Fair

Ogle County, Illinois · 3 MI S of Ill 72 · Structure no. 071005100000000

Built
1980
45 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
267 ft
2 main spans
Daily traffic
750
2022 count
Owner
State
State Highway Agency

About this bridge

Lindenwood RD over I-39 & US 51 is a steel continuous stringer/multi-beam or girder carrying Lindenwood RD over I-39 & US 51 in Ogle County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 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 750 vehicles a day, roughly 8% of them trucks, projected to reach 728 by 2046. The structure is 267 ft (81.5 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLindenwood RD
CrossesI-39 & US 51
Location3 MI S of Ill 72
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates42.05764, -89.01905
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length267 ft (81.5 m)
Longest span110 ft (33.5 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2022)
Projected traffic728 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lindenwood RD over I-39 & US 51 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Lindenwood RD over I-39 & US 51 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 November 2023.

How much traffic does Lindenwood RD over I-39 & US 51 carry?

About 750 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Lindenwood RD over I-39 & US 51?

The structure is 267 ft (81.5 m) long with a longest span of 110 ft (33.5 m) and a deck 36 ft wide.

Who owns Lindenwood RD over I-39 & US 51?

It is owned by the State Highway Agency.