US Bridges

Edwin Road over Drainage Ditch

Good

Nevada County, California · North of Henness Road · Structure no. 17C0101

Built
2007
18 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
1,000
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Edwin Road over Drainage Ditch is a steel stringer/multi-beam or girder carrying Edwin Road over Drainage Ditch in Nevada County, California. It was built in 2007, so it is 18 years old, younger than the California average of 54.8 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,163 by 2042. The structure is 57 ft (17.4 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesEdwin Road
CrossesDrainage Ditch
LocationNorth of Henness Road
RouteCity Street 0
Coordinates39.34175, -120.17104
Functional classUrban Collector

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 protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span49 ft (15 m)
Deck width46 ft (14 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2013)
Projected traffic4,163 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Edwin Road over Drainage Ditch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Edwin Road over Drainage Ditch 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 2024.

How much traffic does Edwin Road over Drainage Ditch carry?

About 1,000 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Edwin Road over Drainage Ditch?

The structure is 57 ft (17.4 m) long with a longest span of 49 ft (15 m) and a deck 46 ft wide.

Who owns Edwin Road over Drainage Ditch?

It is owned by the Town or Township Highway Agency.