US Bridges

Nat Trails HWY over West Ludlow Wash

PoorClosed to traffic

San Bernardino County, California · 0.3 MI W of Crucero RD · Structure no. 54C0150

Built
1930
95 years old, rebuilt 1953
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
1
2015 count
Owner
County
County Highway Agency

About this bridge

Nat Trails HWY over West Ludlow Wash is a wood or timber stringer/multi-beam or girder carrying Nat Trails HWY over West Ludlow Wash in San Bernardino County, California. It was built in 1930 and reconstructed in 1953, so it is 95 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 1 vehicles a day, roughly 2% of them trucks, projected to reach 2 by 2044. The structure is 59 ft (18 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNat Trails HWY
CrossesWest Ludlow Wash
Location0.3 MI W of Crucero RD
RouteCounty Highway 0
Coordinates34.72356, -116.1682
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating20.7 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2015)
Projected traffic2 by 2044
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$591,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nat Trails HWY over West Ludlow Wash built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1953.

What condition is Nat Trails HWY over West Ludlow Wash in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Nat Trails HWY over West Ludlow Wash carry?

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

How long is Nat Trails HWY over West Ludlow Wash?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Nat Trails HWY over West Ludlow Wash?

It is owned by the County Highway Agency.