US Bridges

TR 168 over W Fork Mazon R

Fair

Livingston County, Illinois · 2835N 2000E · Structure no. 053330800000000

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 168 over W Fork Mazon R is a concrete slab carrying TR 168 over W Fork Mazon R in Livingston County, Illinois. It was built in 1961, so it is 64 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 25 vehicles a day, projected to reach 25 by 2046. The structure is 26 ft (7.9 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesTR 168
CrossesW Fork Mazon R
Location2835N 2000E
RouteCounty Highway 0
CountyLivingston County
StateIllinois
Coordinates41.03952, -88.54711
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic25 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 168 over W Fork Mazon R built?

It was built in 1961, making it 64 years old in 2025.

What condition is TR 168 over W Fork Mazon R in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does TR 168 over W Fork Mazon R carry?

About 25 vehicles per day (2023 count).

How long is TR 168 over W Fork Mazon R?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns TR 168 over W Fork Mazon R?

It is owned by the Town or Township Highway Agency.