US Bridges

Leonard Road over Sparrowhawk Creek

Good

Josephine County, Oregon · T36S-R6W-S21 Josephine · Structure no. 18287 330020249

Built
1998
27 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
3,493
2020 count
Owner
County
County Highway Agency

About this bridge

Leonard Road over Sparrowhawk Creek is a prestressed concrete box beam or girders - single or spread carrying Leonard Road over Sparrowhawk Creek in Josephine County, Oregon. It was built in 1998, so it is 27 years old, younger than the Oregon average of 49.9 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 3,493 vehicles a day, roughly 10% of them trucks, projected to reach 4,210 by 2025. The structure is 48 ft (14.6 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLeonard Road
CrossesSparrowhawk Creek
LocationT36S-R6W-S21 Josephine
RouteCounty Highway C3300
StateOregon
Coordinates42.42942, -123.41102
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,493 (2020)
Projected traffic4,210 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Leonard Road over Sparrowhawk Creek built?

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

What condition is Leonard Road over Sparrowhawk 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 October 2024.

How much traffic does Leonard Road over Sparrowhawk Creek carry?

About 3,493 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Leonard Road over Sparrowhawk Creek?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 38 ft wide.

Who owns Leonard Road over Sparrowhawk Creek?

It is owned by the County Highway Agency.