US Bridges

TR 22 Tower RD over I-88

Fair

DeKalb County, Illinois · 1 MI E Ogle CO Line · Structure no. 019990300000000

Built
1974
51 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
4 main spans
Daily traffic
25
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

TR 22 Tower RD over I-88 is a prestressed concrete stringer/multi-beam or girder carrying TR 22 Tower RD over I-88 in DeKalb County, Illinois. It was built in 1974, so it is 51 years old, older 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 25 vehicles a day, projected to reach 28 by 2046. The structure is 218 ft (66.4 m) long and 30 ft wide.

Location

Open in Google Maps
CarriesTR 22 Tower RD
CrossesI-88
Location1 MI E Ogle CO Line
RouteCounty Highway 0
CountyDeKalb County
StateIllinois
Coordinates41.8996, -88.92546
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
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 rating81.5 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length218 ft (66.4 m)
Longest span78 ft (23.8 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2021)
Projected traffic28 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 TR 22 Tower RD over I-88 built?

It was built in 1974, making it 51 years old in 2025.

What condition is TR 22 Tower RD over I-88 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 August 2024.

How much traffic does TR 22 Tower RD over I-88 carry?

About 25 vehicles per day (2021 count).

How long is TR 22 Tower RD over I-88?

The structure is 218 ft (66.4 m) long with a longest span of 78 ft (23.8 m) and a deck 30 ft wide.

Who owns TR 22 Tower RD over I-88?

It is owned by the State Toll Authority.