US Bridges

Ch 18 Woodlawn RD over I-88 (e-W Tollway)

Fair

Ogle County, Illinois · 1 MI W Dekalb CO · Structure no. 071992000000000

Built
1974
51 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
234 ft
4 main spans
Daily traffic
575
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

Ch 18 Woodlawn RD over I-88 (e-W Tollway) is a prestressed concrete stringer/multi-beam or girder carrying Ch 18 Woodlawn RD over I-88 (e-W Tollway) in Ogle 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 575 vehicles a day, roughly 10% of them trucks, projected to reach 702 by 2046. The structure is 234 ft (71.3 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCh 18 Woodlawn RD
CrossesI-88 (e-W Tollway)
Location1 MI W Dekalb CO
RouteCounty Highway 0
Coordinates41.9019, -88.96085
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span85 ft (25.9 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2022)
Projected traffic702 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
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 Ch 18 Woodlawn RD over I-88 (e-W Tollway) built?

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

What condition is Ch 18 Woodlawn RD over I-88 (e-W Tollway) 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 Ch 18 Woodlawn RD over I-88 (e-W Tollway) carry?

About 575 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ch 18 Woodlawn RD over I-88 (e-W Tollway)?

The structure is 234 ft (71.3 m) long with a longest span of 85 ft (25.9 m) and a deck 30 ft wide.

Who owns Ch 18 Woodlawn RD over I-88 (e-W Tollway)?

It is owned by the State Toll Authority.