US Bridges

Lawrenceville Road over Piscasaw Creek

Poor

Boone County, Illinois · 0.5 MI E Belvidere L · Structure no. 004306500000000

Built
1974
51 years old
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
2,050
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lawrenceville Road over Piscasaw Creek is a prestressed concrete box beam or girders - multiple carrying Lawrenceville Road over Piscasaw Creek in Boone County, Illinois. It was built in 1974, so it is 51 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 2,050 vehicles a day, roughly 22% of them trucks, projected to reach 1,924 by 2046. The structure is 145 ft (44.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLawrenceville Road
CrossesPiscasaw Creek
Location0.5 MI E Belvidere L
RouteCounty Highway 0
Coordinates42.26262, -88.81791
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length145 ft (44.3 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,050 (2023)
Projected traffic1,924 by 2046
Trucks22%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$540,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lawrenceville Road over Piscasaw Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Lawrenceville Road over Piscasaw 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 Lawrenceville Road over Piscasaw Creek carry?

About 2,050 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Lawrenceville Road over Piscasaw Creek?

The structure is 145 ft (44.3 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns Lawrenceville Road over Piscasaw Creek?

It is owned by the Town or Township Highway Agency.