US Bridges

FAS261 CH34 over Stream

Poor

LaSalle County, Illinois · N 27th E 950 · Structure no. 050301700000000

Built
1961
64 years old, rebuilt 1995
Condition
Poor
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
1,000
2020 count
Owner
County
County Highway Agency

About this bridge

FAS261 CH34 over Stream is a prestressed concrete box beam or girders - multiple carrying FAS261 CH34 over Stream in LaSalle County, Illinois. It was built in 1961 and reconstructed in 1995, so it is 64 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 3 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 1,000 vehicles a day, roughly 13% of them trucks, projected to reach 1,010 by 2046. The structure is 32 ft (9.7 m) long and 28 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesFAS261 CH34
CrossesStream
LocationN 27th E 950
RouteCounty Highway 0
Coordinates41.32573, -88.98526
Functional classRural Major Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating31.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span30 ft (9 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,010 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS261 CH34 over Stream built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1995.

What condition is FAS261 CH34 over Stream 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 April 2023.

How much traffic does FAS261 CH34 over Stream carry?

About 1,000 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is FAS261 CH34 over Stream?

The structure is 32 ft (9.7 m) long with a longest span of 30 ft (9 m) and a deck 28 ft wide.

Who owns FAS261 CH34 over Stream?

It is owned by the County Highway Agency.