US Bridges

Leaf River Rd. over Br. Silver Creek

Fair

Ogle County, Illinois · 3.5 S. Leaf River · Structure no. 071502200000000

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
250
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Leaf River Rd. over Br. Silver Creek is a concrete culvert carrying Leaf River Rd. over Br. Silver Creek in Ogle County, Illinois. It was built in 1957, so it is 68 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 250 vehicles a day, roughly 23% of them trucks, projected to reach 442 by 2046. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLeaf River Rd.
CrossesBr. Silver Creek
Location3.5 S. Leaf River
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates42.06682, -89.40321
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length26 ft (7.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic442 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Leaf River Rd. over Br. Silver Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Leaf River Rd. over Br. Silver Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Leaf River Rd. over Br. Silver Creek carry?

About 250 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is Leaf River Rd. over Br. Silver Creek?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.7 m).

Who owns Leaf River Rd. over Br. Silver Creek?

It is owned by the Town or Township Highway Agency.