US Bridges

Il 100 over Friddle Branch

Good

Schuyler County, Illinois · 1.9M S Browning Ctr · Structure no. 085003300000000

Built
1992
33 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
1,100
2023 count
Owner
State
State Highway Agency

About this bridge

Il 100 over Friddle Branch is a prestressed concrete stringer/multi-beam or girder carrying Il 100 over Friddle Branch in Schuyler County, Illinois. It was built in 1992, so it is 33 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 1,100 vehicles a day, roughly 14% of them trucks, projected to reach 1,111 by 2046. The structure is 80 ft (24.4 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesIl 100
CrossesFriddle Branch
Location1.9M S Browning Ctr
RouteState Highway 100
CountySchuyler County
StateIllinois
Coordinates40.10806, -90.39346
Functional classRural Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,111 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 100 over Friddle Branch built?

It was built in 1992, making it 33 years old in 2025.

What condition is Il 100 over Friddle Branch 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 May 2023.

How much traffic does Il 100 over Friddle Branch carry?

About 1,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Il 100 over Friddle Branch?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 35 ft wide.

Who owns Il 100 over Friddle Branch?

It is owned by the State Highway Agency.