US Bridges

Edson Road over Beaver CR

Poor

Boone County, Illinois · 0.5 MI SE Poplar Gro · Structure no. 004306100000000

Built
1973
52 years old
Condition
Poor
inspected July 2023
Type
Slab
Concrete
Length
80 ft
3 main spans
Daily traffic
700
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Edson Road over Beaver CR is a concrete slab carrying Edson Road over Beaver CR in Boone County, Illinois. It was built in 1973, so it is 52 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 700 vehicles a day, roughly 20% of them trucks, projected to reach 208 by 2046. The structure is 80 ft (24.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesEdson Road
CrossesBeaver CR
Location0.5 MI SE Poplar Gro
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.35546, -88.80412
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length80 ft (24.4 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2023)
Projected traffic208 by 2046
Trucks20%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Edson Road over Beaver CR built?

It was built in 1973, making it 52 years old in 2025.

What condition is Edson Road over Beaver CR 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 July 2023.

How much traffic does Edson Road over Beaver CR carry?

About 700 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Edson Road over Beaver CR?

The structure is 80 ft (24.4 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns Edson Road over Beaver CR?

It is owned by the Town or Township Highway Agency.