US Bridges

FAS 269 (ch 12) over FAI 39 US 51

Poor

LaSalle County, Illinois · 3 MI N of US 34 · Structure no. 050016200000000

Built
1977
48 years old
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
262 ft
2 main spans
Daily traffic
325
2020 count
Owner
State
State Highway Agency

About this bridge

FAS 269 (ch 12) over FAI 39 US 51 is a steel continuous box beam or girders - single or spread carrying FAS 269 (ch 12) over FAI 39 US 51 in LaSalle County, Illinois. It was built in 1977, so it is 48 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 325 vehicles a day, roughly 16% of them trucks, projected to reach 328 by 2046. The structure is 262 ft (79.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAS 269 (ch 12)
CrossesFAI 39 US 51
Location3 MI N of US 34
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.59784, -89.06085
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span111 ft (33.8 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2020)
Projected traffic328 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 269 (ch 12) over FAI 39 US 51 built?

It was built in 1977, making it 48 years old in 2025.

What condition is FAS 269 (ch 12) over FAI 39 US 51 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 September 2024.

How much traffic does FAS 269 (ch 12) over FAI 39 US 51 carry?

About 325 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is FAS 269 (ch 12) over FAI 39 US 51?

The structure is 262 ft (79.9 m) long with a longest span of 111 ft (33.8 m) and a deck 30 ft wide.

Who owns FAS 269 (ch 12) over FAI 39 US 51?

It is owned by the State Highway Agency.