US Bridges

Poplar Grove RD over Br. of Beaver Creek

Good

Boone County, Illinois · 1.75 Mi. N. of IL173 · Structure no. 004500900000000

Built
1998
27 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
1,350
2023 count
Owner
County
County Highway Agency

About this bridge

Poplar Grove RD over Br. of Beaver Creek is a concrete continuous culvert carrying Poplar Grove RD over Br. of Beaver Creek in Boone County, Illinois. It was built in 1998, so it is 27 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,350 vehicles a day, roughly 9% of them trucks, projected to reach 1,664 by 2046. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPoplar Grove RD
CrossesBr. of Beaver Creek
Location1.75 Mi. N. of IL173
RouteCounty Highway 0
Coordinates42.39605, -88.82197
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2023)
Projected traffic1,664 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Poplar Grove RD over Br. of Beaver Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Poplar Grove RD over Br. of Beaver Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does Poplar Grove RD over Br. of Beaver Creek carry?

About 1,350 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Poplar Grove RD over Br. of Beaver Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m).

Who owns Poplar Grove RD over Br. of Beaver Creek?

It is owned by the County Highway Agency.