US Bridges

FAS 656(CH 28) over Trib of W Branch

Good

Shelby County, Illinois · 2.9 MI NE Herborn · Structure no. 087347000000000

Built
1997
28 years old
Condition
Good
inspected March 2022
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
850
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 656(CH 28) over Trib of W Branch is a concrete frame carrying FAS 656(CH 28) over Trib of W Branch in Shelby County, Illinois. It was built in 1997, so it is 28 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 850 vehicles a day, roughly 15% of them trucks, projected to reach 909 by 2046. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 656(CH 28)
CrossesTrib of W Branch
Location2.9 MI NE Herborn
RouteCounty Highway 0
Coordinates39.31688, -88.57881
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2024)
Projected traffic909 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 656(CH 28) over Trib of W Branch built?

It was built in 1997, making it 28 years old in 2025.

What condition is FAS 656(CH 28) over Trib of W 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 March 2022.

How much traffic does FAS 656(CH 28) over Trib of W Branch carry?

About 850 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is FAS 656(CH 28) over Trib of W Branch?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns FAS 656(CH 28) over Trib of W Branch?

It is owned by the County Highway Agency.