US Bridges

Mt. Vernon Rd. over Br. Elkhorn Creek

Good

Ogle County, Illinois · 3.3 S. Harper · Structure no. 071333200000000

Built
2005
20 years old
Condition
Good
inspected August 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
75
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mt. Vernon Rd. over Br. Elkhorn Creek is a prestressed concrete box beam or girders - multiple carrying Mt. Vernon Rd. over Br. Elkhorn Creek 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, projected to reach 78 by 2046. The structure is 67 ft (20.3 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMt. Vernon Rd.
CrossesBr. Elkhorn Creek
Location3.3 S. Harper
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates42.09312, -89.64703
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length67 ft (20.3 m)
Longest span64 ft (19.6 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2017)
Projected traffic78 by 2046
Trucks0%
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

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 Mt. Vernon Rd. over Br. Elkhorn Creek built?

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

What condition is Mt. Vernon Rd. over Br. Elkhorn 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 August 2021.

How much traffic does Mt. Vernon Rd. over Br. Elkhorn Creek carry?

About 75 vehicles per day (2017 count).

How long is Mt. Vernon Rd. over Br. Elkhorn Creek?

The structure is 67 ft (20.3 m) long with a longest span of 64 ft (19.6 m) and a deck 27 ft wide.

Who owns Mt. Vernon Rd. over Br. Elkhorn Creek?

It is owned by the Town or Township Highway Agency.