US Bridges

FAS 492 Ch 7 over Branch Mackinaw R

Good

McLean County, Illinois · 3.0 MI S Anchor · Structure no. 057313100000000

Built
1983
42 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
725
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 492 Ch 7 over Branch Mackinaw R is a concrete continuous culvert carrying FAS 492 Ch 7 over Branch Mackinaw R in McLean County, Illinois. It was built in 1983, so it is 42 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 725 vehicles a day, roughly 54% of them trucks, projected to reach 530 by 2046. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAS 492 Ch 7
CrossesBranch Mackinaw R
Location3.0 MI S Anchor
RouteCounty Highway 0
Coordinates40.52113, -88.53533
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic725 (2024)
Projected traffic530 by 2046
Trucks54%
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 492 Ch 7 over Branch Mackinaw R built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAS 492 Ch 7 over Branch Mackinaw R 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 2024.

How much traffic does FAS 492 Ch 7 over Branch Mackinaw R carry?

About 725 vehicles per day (2024 count), of which roughly 54% are trucks.

How long is FAS 492 Ch 7 over Branch Mackinaw R?

The structure is 31 ft (9.6 m) long with a longest span of 14 ft (4.4 m).

Who owns FAS 492 Ch 7 over Branch Mackinaw R?

It is owned by the County Highway Agency.