US Bridges

Sbi 13 (unmarked) over Pigeon Creek

Fair

Williamson County, Illinois · 1.1 MI W of Ill 148 · Structure no. 100004500000000

Built
1920
105 years old, rebuilt 1984
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
1,550
2021 count
Owner
State
State Highway Agency

About this bridge

Sbi 13 (unmarked) over Pigeon Creek is a prestressed concrete box beam or girders - multiple carrying Sbi 13 (unmarked) over Pigeon Creek in Williamson County, Illinois. It was built in 1920 and reconstructed in 1984, so it is 105 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 1,550 vehicles a day, roughly 6% of them trucks, projected to reach 1,566 by 2046. The structure is 33 ft (10.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSbi 13 (unmarked)
CrossesPigeon Creek
Location1.1 MI W of Ill 148
RouteCounty Highway 0
Coordinates37.73772, -89.03378
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating83.6 US tons
Inventory rating51.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span29 ft (8.9 m)
Deck width31 ft (9.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2021)
Projected traffic1,566 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Sbi 13 (unmarked) over Pigeon Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1984.

What condition is Sbi 13 (unmarked) over Pigeon 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 November 2023.

How much traffic does Sbi 13 (unmarked) over Pigeon Creek carry?

About 1,550 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Sbi 13 (unmarked) over Pigeon Creek?

The structure is 33 ft (10.1 m) long with a longest span of 29 ft (8.9 m) and a deck 31 ft wide.

Who owns Sbi 13 (unmarked) over Pigeon Creek?

It is owned by the State Highway Agency.