US Bridges

TR 164 over Slade Branch

Good

Perry County, Illinois · .2 MI S Washington C · Structure no. 073317600000000

Built
2005
20 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
20
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 164 over Slade Branch is a prestressed concrete box beam or girders - multiple carrying TR 164 over Slade Branch in Perry 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 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 20 vehicles a day, projected to reach 10 by 2046. The structure is 41 ft (12.6 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTR 164
CrossesSlade Branch
Location.2 MI S Washington C
RouteCounty Highway 0
Coordinates38.21069, -89.36606
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span39 ft (11.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
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 164 over Slade Branch built?

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

What condition is TR 164 over Slade Branch 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 January 2025.

How much traffic does TR 164 over Slade Branch carry?

About 20 vehicles per day (2024 count).

How long is TR 164 over Slade Branch?

The structure is 41 ft (12.6 m) long with a longest span of 39 ft (11.9 m) and a deck 24 ft wide.

Who owns TR 164 over Slade Branch?

It is owned by the Town or Township Highway Agency.