US Bridges

Ill 26 over Stream

Fair

Stephenson County, Illinois · 2 Mi. S. of Freeport · Structure no. 089200300000000

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
4,750
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 26 over Stream is a concrete culvert carrying Ill 26 over Stream in Stephenson County, Illinois. It was built in 1977, so it is 48 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 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 4,750 vehicles a day, roughly 9% of them trucks, projected to reach 4,899 by 2046. The structure is 40 ft (12.2 m) long and 90 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesIll 26
CrossesStream
Location2 Mi. S. of Freeport
RouteState Highway 26
CountyStephenson County
StateIllinois
Coordinates42.24767, -89.631
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating42.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span20 ft (6 m)
Deck width90 ft (27.4 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2023)
Projected traffic4,899 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 Ill 26 over Stream built?

It was built in 1977, making it 48 years old in 2025.

What condition is Ill 26 over Stream 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 November 2023.

How much traffic does Ill 26 over Stream carry?

About 4,750 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 26 over Stream?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6 m) and a deck 90 ft wide.

Who owns Ill 26 over Stream?

It is owned by the State Highway Agency.