US Bridges

Township Road 3 over Silver Creek

Poor

Bureau County, Illinois · 7 MI S of Buda · Structure no. 006420200000000

Built
1970
55 years old
Condition
Poor
inspected November 2023
Type
Channel Beam
Concrete
Length
54 ft
3 main spans
Daily traffic
20
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Township Road 3 over Silver Creek is a concrete channel beam carrying Township Road 3 over Silver Creek in Bureau County, Illinois. It was built in 1970, so it is 55 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20 vehicles a day, roughly 30% of them trucks, projected to reach 76 by 2046. The structure is 54 ft (16.5 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesTownship Road 3
CrossesSilver Creek
Location7 MI S of Buda
RouteCounty Highway 0
CountyBureau County
StateIllinois
Coordinates41.23385, -89.66101
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating22.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span18 ft (5.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic76 by 2046
Trucks30%
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 Township Road 3 over Silver Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Township Road 3 over Silver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Township Road 3 over Silver Creek carry?

About 20 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Township Road 3 over Silver Creek?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.5 m) and a deck 24 ft wide.

Who owns Township Road 3 over Silver Creek?

It is owned by the Town or Township Highway Agency.