US Bridges

Anterier Rd. over Sevenmile Branch

Good

Ogle County, Illinois · 3.5 N.W. Grand Detou · Structure no. 071332800000000

Built
2005
20 years old
Condition
Good
inspected August 2021
Type
Channel Beam
Concrete
Length
38 ft
1 main span
Daily traffic
100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Anterier Rd. over Sevenmile Branch is a concrete channel beam carrying Anterier Rd. over Sevenmile Branch in Ogle County, Illinois. It was built in 2005, so it is 20 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 100 vehicles a day, roughly 4% of them trucks, projected to reach 26 by 2046. The structure is 38 ft (11.6 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAnterier Rd.
CrossesSevenmile Branch
Location3.5 N.W. Grand Detou
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates41.92332, -89.47503
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99.3 US tons
Inventory rating59.3 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic26 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Anterier Rd. over Sevenmile Branch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Anterier Rd. over Sevenmile Branch 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 August 2021.

How much traffic does Anterier Rd. over Sevenmile Branch carry?

About 100 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Anterier Rd. over Sevenmile Branch?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.8 m) and a deck 30 ft wide.

Who owns Anterier Rd. over Sevenmile Branch?

It is owned by the Town or Township Highway Agency.