US Bridges

Merritt Road over Kelsey Creek

Fair

Lake County, California · 500 Ft E/O Big Valley RD · Structure no. 14C0118

Built
2008
17 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
290 ft
3 main spans
Daily traffic
1,870
2009 count
Owner
County
County Highway Agency

About this bridge

Merritt Road over Kelsey Creek is a prestressed concrete continuous box beam or girders - multiple carrying Merritt Road over Kelsey Creek in Lake County, California. It was built in 2008, so it is 17 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 1,870 vehicles a day, roughly 10% of them trucks, projected to reach 2,692 by 2042. The structure is 290 ft (88.4 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesMerritt Road
CrossesKelsey Creek
Location500 Ft E/O Big Valley RD
RouteCounty Highway 0
CountyLake County
StateCalifornia
Coordinates38.98214, -122.8442
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2024
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 adequacy9: Superior to present desirable 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
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length290 ft (88.4 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,870 (2009)
Projected traffic2,692 by 2042
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Merritt Road over Kelsey Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Merritt Road over Kelsey 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 March 2024.

How much traffic does Merritt Road over Kelsey Creek carry?

About 1,870 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is Merritt Road over Kelsey Creek?

The structure is 290 ft (88.4 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns Merritt Road over Kelsey Creek?

It is owned by the County Highway Agency.