US Bridges

FAS 331 (ch 21) over Collison Branch

Good

Vermilion County, Illinois · East Edge Collison · Structure no. 092352800000000

Built
2016
9 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
1 main span
Daily traffic
450
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 331 (ch 21) over Collison Branch is a steel stringer/multi-beam or girder carrying FAS 331 (ch 21) over Collison Branch in Vermilion County, Illinois. It was built in 2016, so it is 9 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 450 vehicles a day, roughly 11% of them trucks, projected to reach 455 by 2046. The structure is 79 ft (24.2 m) long and 30 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesFAS 331 (ch 21)
CrossesCollison Branch
LocationEast Edge Collison
RouteCounty Highway 0
CountyVermilion County
StateIllinois
Coordinates40.2249, -87.79985
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length79 ft (24.2 m)
Longest span76 ft (23.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic455 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 331 (ch 21) over Collison Branch built?

It was built in 2016, making it 9 years old in 2025.

What condition is FAS 331 (ch 21) over Collison 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 February 2022.

How much traffic does FAS 331 (ch 21) over Collison Branch carry?

About 450 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FAS 331 (ch 21) over Collison Branch?

The structure is 79 ft (24.2 m) long with a longest span of 76 ft (23.2 m) and a deck 30 ft wide.

Who owns FAS 331 (ch 21) over Collison Branch?

It is owned by the County Highway Agency.