US Bridges

FAP-327EB (US-50) over FR-1747/ALLISON Dt 2

Poor

Lawrence County, Illinois · .5 MI W Lake Law Int · Structure no. 051002400000000

Built
1959
66 years old, rebuilt 2001
Condition
Poor
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
454 ft
7 main spans
Daily traffic
7,200
2023 count
Owner
State
State Highway Agency

About this bridge

FAP-327EB (US-50) over FR-1747/ALLISON Dt 2 is a prestressed concrete box beam or girders - multiple carrying FAP-327EB (US-50) over FR-1747/ALLISON Dt 2 in Lawrence County, Illinois. It was built in 1959 and reconstructed in 2001, so it is 66 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 7,200 vehicles a day, roughly 18% of them trucks, projected to reach 4,065 by 2046. The structure is 454 ft (138.4 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFAP-327EB (US-50)
CrossesFR-1747/ALLISON Dt 2
Location.5 MI W Lake Law Int
RouteU.S. Route 50
Coordinates38.71278, -87.56435
Functional classRural Principal Arterial - Other

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.
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 inspectionSeptember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length454 ft (138.4 m)
Longest span63 ft (19.2 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2023)
Projected traffic4,065 by 2046
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP-327EB (US-50) over FR-1747/ALLISON Dt 2 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2001.

What condition is FAP-327EB (US-50) over FR-1747/ALLISON Dt 2 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 2023.

How much traffic does FAP-327EB (US-50) over FR-1747/ALLISON Dt 2 carry?

About 7,200 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is FAP-327EB (US-50) over FR-1747/ALLISON Dt 2?

The structure is 454 ft (138.4 m) long with a longest span of 63 ft (19.2 m) and a deck 36 ft wide.

Who owns FAP-327EB (US-50) over FR-1747/ALLISON Dt 2?

It is owned by the State Highway Agency.