US Bridges

Ill 49 over Br Pigeon Creek

Poor

Iroquois County, Illinois · 2.4 MI N of Ill 9 · Structure no. 038019000000000

Built
1990
35 years old
Condition
Poor
inspected March 2024
Type
Slab
Concrete Continuous
Length
68 ft
2 main spans
Daily traffic
1,050
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 49 over Br Pigeon Creek is a concrete continuous slab carrying Ill 49 over Br Pigeon Creek in Iroquois County, Illinois. It was built in 1990, so it is 35 years old, younger 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 1,050 vehicles a day, roughly 23% of them trucks, projected to reach 1,061 by 2046. The structure is 68 ft (20.7 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 49
CrossesBr Pigeon Creek
Location2.4 MI N of Ill 9
RouteState Highway 49
Coordinates40.48867, -87.89753
Functional classRural Minor Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span32 ft (9.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2023)
Projected traffic1,061 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Ill 49 over Br Pigeon Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Ill 49 over Br Pigeon 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 March 2024.

How much traffic does Ill 49 over Br Pigeon Creek carry?

About 1,050 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Ill 49 over Br Pigeon Creek?

The structure is 68 ft (20.7 m) long with a longest span of 32 ft (9.9 m) and a deck 43 ft wide.

Who owns Ill 49 over Br Pigeon Creek?

It is owned by the State Highway Agency.