US Bridges

State Route 169 over Pecwan Creek

Good

Humboldt County, California · 01-HUM-169-14.46 · Structure no. 04 0190

Built
1961
64 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
197 ft
3 main spans
Daily traffic
260
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 169 over Pecwan Creek is a steel stringer/multi-beam or girder carrying State Route 169 over Pecwan Creek in Humboldt County, California. It was built in 1961, so it is 64 years old, older 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 260 vehicles a day, roughly 20% of them trucks, projected to reach 4,261 by 2046. The structure is 197 ft (59.9 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 169
CrossesPecwan Creek
Location01-HUM-169-14.46
RouteState Highway 169
Coordinates41.34337, -123.85416
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating106.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length197 ft (59.9 m)
Longest span124 ft (37.8 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2009)
Projected traffic4,261 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 169 over Pecwan Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is State Route 169 over Pecwan 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 September 2024.

How much traffic does State Route 169 over Pecwan Creek carry?

About 260 vehicles per day (2009 count), of which roughly 20% are trucks.

How long is State Route 169 over Pecwan Creek?

The structure is 197 ft (59.9 m) long with a longest span of 124 ft (37.8 m) and a deck 32 ft wide.

Who owns State Route 169 over Pecwan Creek?

It is owned by the State Highway Agency.