US Bridges

RTE 20E - RTE 101N over Haehl Creek

Good

Mendocino County, California · 01-MEN-101-R43.79 · Structure no. 10 0129G

Built
2016
9 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
66 ft
1 main span
Daily traffic
8,000
2017 count
Owner
State
State Highway Agency

About this bridge

RTE 20E - RTE 101N over Haehl Creek is a concrete box beam or girders - multiple carrying RTE 20E - RTE 101N over Haehl Creek in Mendocino County, California. It was built in 2016, so it is 9 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 8,000 vehicles a day, projected to reach 12,283 by 2041. The structure is 66 ft (20 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 20E - RTE 101N
CrossesHaehl Creek
Location01-MEN-101-R43.79
RouteU.S. Route 101
CountyMendocino County
StateCalifornia
Coordinates39.37608, -123.32445
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionApril 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length66 ft (20 m)
Longest span64 ft (19.5 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2017)
Projected traffic12,283 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 RTE 20E - RTE 101N over Haehl Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is RTE 20E - RTE 101N over Haehl 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 April 2023.

How much traffic does RTE 20E - RTE 101N over Haehl Creek carry?

About 8,000 vehicles per day (2017 count).

How long is RTE 20E - RTE 101N over Haehl Creek?

The structure is 66 ft (20 m) long with a longest span of 64 ft (19.5 m) and a deck 39 ft wide.

Who owns RTE 20E - RTE 101N over Haehl Creek?

It is owned by the State Highway Agency.