US Bridges

FAS 345 CH6 over West Fork Mazon Riv

Good

Livingston County, Illinois · 1 MI N Odell · Structure no. 053500300000000

Built
1979
46 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
225
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 345 CH6 over West Fork Mazon Riv is a concrete continuous culvert carrying FAS 345 CH6 over West Fork Mazon Riv in Livingston County, Illinois. It was built in 1979, so it is 46 years old, older 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 225 vehicles a day, roughly 42% of them trucks, projected to reach 253 by 2046. The structure is 26 ft (7.9 m) long and 34 ft wide.

CarriesFAS 345 CH6
CrossesWest Fork Mazon Riv
Location1 MI N Odell
RouteCounty Highway 0
Coordinates41.0232, -88.52822
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic253 by 2046
Trucks42%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 345 CH6 over West Fork Mazon Riv built?

It was built in 1979, making it 46 years old in 2025.

What condition is FAS 345 CH6 over West Fork Mazon Riv 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 September 2021.

How much traffic does FAS 345 CH6 over West Fork Mazon Riv carry?

About 225 vehicles per day (2023 count), of which roughly 42% are trucks.

How long is FAS 345 CH6 over West Fork Mazon Riv?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 34 ft wide.

Who owns FAS 345 CH6 over West Fork Mazon Riv?

It is owned by the County Highway Agency.