US Bridges

Mill Creek Cmpgrnd over Mill Creek

Fair

Del Norte County, California · Del Norte State Park · Structure no. 01P0010

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
88 ft
3 main spans
Daily traffic
200
2004 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Mill Creek Cmpgrnd over Mill Creek is a steel continuous stringer/multi-beam or girder carrying Mill Creek Cmpgrnd over Mill Creek in Del Norte 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 200 vehicles a day, roughly 1% of them trucks, projected to reach 325 by 2042. The structure is 88 ft (26.8 m) long and 19 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMill Creek Cmpgrnd
CrossesMill Creek
LocationDel Norte State Park
RouteState Lands Road 0
Coordinates41.70119, -124.09609
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.7 US tons
Inventory rating17.5 US tons

Structure

MaterialSteel Continuous
DeckSteel plate
Main spans3
Design loadUnknown
Structure length88 ft (26.8 m)
Longest span75 ft (22.9 m)
Deck width19 ft (5.7 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2004)
Projected traffic325 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Mill Creek Cmpgrnd over Mill Creek built?

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

What condition is Mill Creek Cmpgrnd over Mill Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Mill Creek Cmpgrnd over Mill Creek carry?

About 200 vehicles per day (2004 count), of which roughly 1% are trucks.

How long is Mill Creek Cmpgrnd over Mill Creek?

The structure is 88 ft (26.8 m) long with a longest span of 75 ft (22.9 m) and a deck 19 ft wide.

Who owns Mill Creek Cmpgrnd over Mill Creek?

It is owned by the State Park, Forest, or Reservation Agency.