US Bridges

Sky Ranch RD (632) over Lewis Creek

Fair

Madera County, California · 0.2 MI E RTE 41 · Structure no. 41C0121

Built
1950
75 years old, rebuilt 2002
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
1,600
2015 count
Owner
County
County Highway Agency

About this bridge

Sky Ranch RD (632) over Lewis Creek is a prestressed concrete stringer/multi-beam or girder carrying Sky Ranch RD (632) over Lewis Creek in Madera County, California. It was built in 1950 and reconstructed in 2002, so it is 75 years old, older 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 6 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 1,600 vehicles a day, roughly 2% of them trucks, projected to reach 1,963 by 2041. The structure is 49 ft (14.8 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSky Ranch RD (632)
CrossesLewis Creek
Location0.2 MI E RTE 41
RouteCounty Highway 0
Coordinates37.37679, -119.62246
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length49 ft (14.8 m)
Longest span47 ft (14.2 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2015)
Projected traffic1,963 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Sky Ranch RD (632) over Lewis Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2002.

What condition is Sky Ranch RD (632) over Lewis 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 September 2023.

How much traffic does Sky Ranch RD (632) over Lewis Creek carry?

About 1,600 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Sky Ranch RD (632) over Lewis Creek?

The structure is 49 ft (14.8 m) long with a longest span of 47 ft (14.2 m) and a deck 31 ft wide.

Who owns Sky Ranch RD (632) over Lewis Creek?

It is owned by the County Highway Agency.