US Bridges

River Dale RD over I-88

Fair

Whiteside County, Illinois · 2 MI W Ill 40 · Structure no. 098008200000000

Built
1972
53 years old, rebuilt 2024
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
250 ft
2 main spans
Daily traffic
475
2021 count
Owner
State
State Highway Agency

About this bridge

River Dale RD over I-88 is a steel continuous stringer/multi-beam or girder carrying River Dale RD over I-88 in Whiteside County, Illinois. It was built in 1972 and reconstructed in 2024, so it is 53 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 475 vehicles a day, roughly 7% of them trucks, projected to reach 480 by 2046. The structure is 250 ft (76.1 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRiver Dale RD
CrossesI-88
Location2 MI W Ill 40
RouteCounty Highway 0
CountyWhiteside County
StateIllinois
Coordinates41.7512, -89.73279
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
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 rating47.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length250 ft (76.1 m)
Longest span107 ft (32.7 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2021)
Projected traffic480 by 2046
Trucks7%
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 River Dale RD over I-88 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2024.

What condition is River Dale 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 December 2023.

How much traffic does River Dale RD over I-88 carry?

About 475 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is River Dale RD over I-88?

The structure is 250 ft (76.1 m) long with a longest span of 107 ft (32.7 m) and a deck 32 ft wide.

Who owns River Dale RD over I-88?

It is owned by the State Highway Agency.