US Bridges

US 20 over Yellow Creek

Good

Stephenson County, Illinois · 0.1 MI E Jo Dav. Co. · Structure no. 089007500000000

Built
1995
30 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
5,750
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 over Yellow Creek is a prestressed concrete stringer/multi-beam or girder carrying US 20 over Yellow Creek in Stephenson County, Illinois. It was built in 1995, so it is 30 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,750 vehicles a day, roughly 18% of them trucks, projected to reach 6,414 by 2046. The structure is 94 ft (28.7 m) long and 43 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesUS 20
CrossesYellow Creek
Location0.1 MI E Jo Dav. Co.
RouteU.S. Route 20
CountyStephenson County
StateIllinois
Coordinates42.35674, -89.923
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length94 ft (28.7 m)
Longest span92 ft (28 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,750 (2023)
Projected traffic6,414 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 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 Yellow Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 20 over Yellow Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2022.

How much traffic does US 20 over Yellow Creek carry?

About 5,750 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is US 20 over Yellow Creek?

The structure is 94 ft (28.7 m) long with a longest span of 92 ft (28 m) and a deck 43 ft wide.

Who owns US 20 over Yellow Creek?

It is owned by the State Highway Agency.