US Bridges

Ch 6 FAS 345 over W Fork Mazon River

Good

Livingston County, Illinois · 1.7 MI N of Odell · Structure no. 053345300000000

Built
1999
26 years old
Condition
Good
inspected September 2021
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
225
2023 count
Owner
County
County Highway Agency

About this bridge

Ch 6 FAS 345 over W Fork Mazon River is a concrete continuous slab carrying Ch 6 FAS 345 over W Fork Mazon River in Livingston County, Illinois. It was built in 1999, so it is 26 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 225 vehicles a day, roughly 42% of them trucks, projected to reach 253 by 2046. The structure is 68 ft (20.6 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCh 6 FAS 345
CrossesW Fork Mazon River
Location1.7 MI N of Odell
RouteCounty Highway 0
Coordinates41.03252, -88.528
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2021
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 alignment9: Superior to present desirable criteria
Operating rating90.4 US tons
Inventory rating54.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.6 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 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 closed1.9 mi (3 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 Ch 6 FAS 345 over W Fork Mazon River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Ch 6 FAS 345 over W Fork Mazon 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 September 2021.

How much traffic does Ch 6 FAS 345 over W Fork Mazon River carry?

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

How long is Ch 6 FAS 345 over W Fork Mazon River?

The structure is 68 ft (20.6 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns Ch 6 FAS 345 over W Fork Mazon River?

It is owned by the County Highway Agency.