US Bridges

US 20 over Rush Creek

Poor

Jo Daviess County, Illinois · .76 MI E Logemann RD · Structure no. 043003600000000

Built
1971
54 years old, rebuilt 2006
Condition
Poor
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
3,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 over Rush Creek is a prestressed concrete box beam or girders - multiple carrying US 20 over Rush Creek in Jo Daviess County, Illinois. It was built in 1971 and reconstructed in 2006, so it is 54 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,800 vehicles a day, roughly 20% of them trucks, projected to reach 3,636 by 2046. The structure is 153 ft (46.5 m) long and 33 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesUS 20
CrossesRush Creek
Location.76 MI E Logemann RD
RouteU.S. Route 20
Coordinates42.3576, -90.07242
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length153 ft (46.5 m)
Longest span50 ft (15.3 m)
Deck width33 ft (10.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic3,636 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 over Rush Creek built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2006.

What condition is US 20 over Rush Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does US 20 over Rush Creek carry?

About 3,800 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is US 20 over Rush Creek?

The structure is 153 ft (46.5 m) long with a longest span of 50 ft (15.3 m) and a deck 33 ft wide.

Who owns US 20 over Rush Creek?

It is owned by the State Highway Agency.