US Bridges

Central Ave over Twin Warm Creek

Fair

San Bernardino County, California · 0.4 MI W Waterman Ave · Structure no. 54C0538

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
271 ft
4 main spans
Daily traffic
3,216
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Central Ave over Twin Warm Creek is a steel stringer/multi-beam or girder carrying Central Ave over Twin Warm Creek in San Bernardino County, California. It was built in 1959, so it is 66 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 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 3,216 vehicles a day, roughly 2% of them trucks, projected to reach 4,019 by 2042. The structure is 271 ft (82.6 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCentral Ave
CrossesTwin Warm Creek
Location0.4 MI W Waterman Ave
RouteCity Street 0
CountySan Bernardino County
StateCalifornia
Coordinates34.08595, -117.28635
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length271 ft (82.6 m)
Longest span67 ft (20.4 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,216 (2016)
Projected traffic4,019 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Central Ave over Twin Warm Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Central Ave over Twin Warm 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 Central Ave over Twin Warm Creek carry?

About 3,216 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Central Ave over Twin Warm Creek?

The structure is 271 ft (82.6 m) long with a longest span of 67 ft (20.4 m) and a deck 64 ft wide.

Who owns Central Ave over Twin Warm Creek?

It is owned by the City or Municipal Highway Agency.