US Bridges

Tiskilwa Spur over Bureau Creek

Fair

Bureau County, Illinois · 0.3 MI N Tiskilwa · Structure no. 006011400000000

Built
1933
92 years old, rebuilt 1984
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
379 ft
6 main spans
Daily traffic
1,100
2020 count
Owner
State
State Highway Agency

About this bridge

Tiskilwa Spur over Bureau Creek is a prestressed concrete stringer/multi-beam or girder carrying Tiskilwa Spur over Bureau Creek in Bureau County, Illinois. It was built in 1933 and reconstructed in 1984, so it is 92 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 1,100 vehicles a day, roughly 7% of them trucks, projected to reach 1,111 by 2046. The structure is 379 ft (115.5 m) long and 35 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesTiskilwa Spur
CrossesBureau Creek
Location0.3 MI N Tiskilwa
RouteCounty Highway 0
CountyBureau County
StateIllinois
Coordinates41.30674, -89.50992
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length379 ft (115.5 m)
Longest span64 ft (19.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2020)
Projected traffic1,111 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Tiskilwa Spur over Bureau Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1984.

What condition is Tiskilwa Spur over Bureau Creek 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 February 2024.

How much traffic does Tiskilwa Spur over Bureau Creek carry?

About 1,100 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Tiskilwa Spur over Bureau Creek?

The structure is 379 ft (115.5 m) long with a longest span of 64 ft (19.5 m) and a deck 35 ft wide.

Who owns Tiskilwa Spur over Bureau Creek?

It is owned by the State Highway Agency.