US Bridges

Blosser Lane over Broaddus Creek

Good

Mendocino County, California · Just South SR 20 · Structure no. 10C0197

Built
1989
36 years old
Condition
Good
inspected August 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
750
1985 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blosser Lane over Broaddus Creek is a prestressed concrete box beam or girders - multiple carrying Blosser Lane over Broaddus Creek in Mendocino County, California. It was built in 1989, so it is 36 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 750 vehicles a day, roughly 5% of them trucks, projected to reach 1,128 by 2043. The structure is 79 ft (24.1 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBlosser Lane
CrossesBroaddus Creek
LocationJust South SR 20
RouteCity Street 0
Coordinates39.40393, -123.3597
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length79 ft (24.1 m)
Longest span76 ft (23.2 m)
Deck width38 ft (11.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (1985)
Projected traffic1,128 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Blosser Lane over Broaddus Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Blosser Lane over Broaddus 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 Blosser Lane over Broaddus Creek carry?

About 750 vehicles per day (1985 count), of which roughly 5% are trucks.

How long is Blosser Lane over Broaddus Creek?

The structure is 79 ft (24.1 m) long with a longest span of 76 ft (23.2 m) and a deck 38 ft wide.

Who owns Blosser Lane over Broaddus Creek?

It is owned by the City or Municipal Highway Agency.