US Bridges

Springfield RD over US20 Freeport Bypass

Fair

Stephenson County, Illinois · E of Freeport · Structure no. 089005000000000

Built
1986
39 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
335 ft
2 main spans
Daily traffic
310
2024 count
Owner
State
State Highway Agency

About this bridge

Springfield RD over US20 Freeport Bypass is a steel continuous stringer/multi-beam or girder carrying Springfield RD over US20 Freeport Bypass in Stephenson County, Illinois. It was built in 1986, so it is 39 years old, younger 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 310 vehicles a day, roughly 14% of them trucks, projected to reach 354 by 2046. The structure is 335 ft (102 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSpringfield RD
CrossesUS20 Freeport Bypass
LocationE of Freeport
RouteCounty Highway 0
CountyStephenson County
StateIllinois
Coordinates42.27959, -89.5429
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length335 ft (102 m)
Longest span135 ft (41.3 m)
Deck width65 ft (19.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2024)
Projected traffic354 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Springfield RD over US20 Freeport Bypass built?

It was built in 1986, making it 39 years old in 2025.

What condition is Springfield RD over US20 Freeport Bypass 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 October 2023.

How much traffic does Springfield RD over US20 Freeport Bypass carry?

About 310 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Springfield RD over US20 Freeport Bypass?

The structure is 335 ft (102 m) long with a longest span of 135 ft (41.3 m) and a deck 65 ft wide.

Who owns Springfield RD over US20 Freeport Bypass?

It is owned by the State Highway Agency.