US Bridges

FAS 349/CH 13 over Mackinaw River

Good

McLean County, Illinois · 0.5 MI SW of Colfax · Structure no. 057504000000000

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
3 main spans
Daily traffic
625
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 349/CH 13 over Mackinaw River is a steel continuous stringer/multi-beam or girder carrying FAS 349/CH 13 over Mackinaw River in McLean County, Illinois. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 625 vehicles a day, roughly 5% of them trucks, projected to reach 425 by 2033. The structure is 272 ft (83 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 349/CH 13
CrossesMackinaw River
Location0.5 MI SW of Colfax
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.55887, -88.61914
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length272 ft (83 m)
Longest span103 ft (31.5 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic625 (2024)
Projected traffic425 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 349/CH 13 over Mackinaw River built?

It was built in 2023, making it 2 years old in 2025.

What condition is FAS 349/CH 13 over Mackinaw River 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 December 2023.

How much traffic does FAS 349/CH 13 over Mackinaw River carry?

About 625 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is FAS 349/CH 13 over Mackinaw River?

The structure is 272 ft (83 m) long with a longest span of 103 ft (31.5 m) and a deck 32 ft wide.

Who owns FAS 349/CH 13 over Mackinaw River?

It is owned by the County Highway Agency.