US Bridges

TR-167 Scully RD over Trib E Fk Mazon Riv

Fair

Grundy County, Illinois · .09 MI W CH-31 · Structure no. 032590600000000

Built
2005
20 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
90 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-167 Scully RD over Trib E Fk Mazon Riv is a concrete channel beam carrying TR-167 Scully RD over Trib E Fk Mazon Riv in Grundy County, Illinois. It was built in 2005, so it is 20 years old, younger 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 50 vehicles a day, roughly 20% of them trucks, projected to reach 60 by 2046. The structure is 90 ft (27.4 m) long and 26 ft wide.

CarriesTR-167 Scully RD
CrossesTrib E Fk Mazon Riv
Location.09 MI W CH-31
RouteCounty Highway 0
Coordinates41.12892, -88.24313
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span36 ft (10.9 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic60 by 2046
Trucks20%
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-167 Scully RD over Trib E Fk Mazon Riv built?

It was built in 2005, making it 20 years old in 2025.

What condition is TR-167 Scully RD over Trib E Fk Mazon Riv 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 October 2024.

How much traffic does TR-167 Scully RD over Trib E Fk Mazon Riv carry?

About 50 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is TR-167 Scully RD over Trib E Fk Mazon Riv?

The structure is 90 ft (27.4 m) long with a longest span of 36 ft (10.9 m) and a deck 26 ft wide.

Who owns TR-167 Scully RD over Trib E Fk Mazon Riv?

It is owned by the Town or Township Highway Agency.