US Bridges

TR 305 over Kaskaskia River

Good

Champaign County, Illinois · 5.4 MI SW Sadorus · Structure no. 010401200000000

Built
1975
50 years old
Condition
Good
inspected January 2024
Type
Channel Beam
Concrete
Length
100 ft
3 main spans
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 305 over Kaskaskia River is a concrete channel beam carrying TR 305 over Kaskaskia River in Champaign County, Illinois. It was built in 1975, so it is 50 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 100 ft (30.4 m) long and 26 ft wide.

CarriesTR 305
CrossesKaskaskia River
Location5.4 MI SW Sadorus
RouteCounty Highway 0
Coordinates39.89395, -88.38369
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating35.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length100 ft (30.4 m)
Longest span34 ft (10.4 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 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 305 over Kaskaskia River built?

It was built in 1975, making it 50 years old in 2025.

What condition is TR 305 over Kaskaskia 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 January 2024.

How much traffic does TR 305 over Kaskaskia River carry?

About 50 vehicles per day (2021 count).

How long is TR 305 over Kaskaskia River?

The structure is 100 ft (30.4 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns TR 305 over Kaskaskia River?

It is owned by the Town or Township Highway Agency.