US Bridges

US 12 20 EB Rmp Il over RR - CSXT & Richard

Fair

Cook County, Illinois · 0.1 M NW Il 43 · Structure no. 016101000000000

Built
1961
64 years old, rebuilt 1984
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
285 ft
4 main spans
Daily traffic
4,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 20 EB Rmp Il over RR - CSXT & Richard is a steel stringer/multi-beam or girder carrying US 12 20 EB Rmp Il over RR - CSXT & Richard in Cook County, Illinois. It was built in 1961 and reconstructed in 1984, 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 4,000 vehicles a day, projected to reach 2,525 by 2046. The structure is 285 ft (86.9 m) long and 30 ft wide.

Location

Open in Google Maps
CarriesUS 12 20 EB Rmp Il
CrossesRR - CSXT & Richard
Location0.1 M NW Il 43
CountyCook County
StateIllinois
Coordinates41.71716, -87.79943
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMarch 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating93.6 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span78 ft (23.9 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2023)
Projected traffic2,525 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 12 20 EB Rmp Il over RR - CSXT & Richard built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1984.

What condition is US 12 20 EB Rmp Il over RR - CSXT & Richard 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 March 2023.

How much traffic does US 12 20 EB Rmp Il over RR - CSXT & Richard carry?

About 4,000 vehicles per day (2023 count).

How long is US 12 20 EB Rmp Il over RR - CSXT & Richard?

The structure is 285 ft (86.9 m) long with a longest span of 78 ft (23.9 m) and a deck 30 ft wide.

Who owns US 12 20 EB Rmp Il over RR - CSXT & Richard?

It is owned by the State Highway Agency.