US Bridges

Randall RD over US 20 by Pass

Fair

Kane County, Illinois · 2.5 M W of Il 31 · Structure no. 045006000000000

Built
1961
64 years old, rebuilt 1986
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
255 ft
4 main spans
Daily traffic
38,500
2023 count
Owner
State
State Highway Agency

About this bridge

Randall RD over US 20 by Pass is a steel continuous stringer/multi-beam or girder carrying Randall RD over US 20 by Pass in Kane County, Illinois. It was built in 1961 and reconstructed in 1986, so it is 64 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 5 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 38,500 vehicles a day, roughly 6% of them trucks, projected to reach 48,922 by 2046. The structure is 255 ft (77.6 m) long and 83 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRandall RD
CrossesUS 20 by Pass
Location2.5 M W of Il 31
CountyKane County
StateIllinois
Coordinates42.03208, -88.33811
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.6 m)
Longest span79 ft (24 m)
Deck width83 ft (25.4 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,500 (2023)
Projected traffic48,922 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Randall RD over US 20 by Pass built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1986.

What condition is Randall RD over US 20 by Pass 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 July 2024.

How much traffic does Randall RD over US 20 by Pass carry?

About 38,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Randall RD over US 20 by Pass?

The structure is 255 ft (77.6 m) long with a longest span of 79 ft (24 m) and a deck 83 ft wide.

Who owns Randall RD over US 20 by Pass?

It is owned by the State Highway Agency.