US Bridges

Waterman Ave over Twin Warm Creek

Fair

San Bernardino County, California · 2.1 MI North of I-10 · Structure no. 54C0194

Built
1960
65 years old, rebuilt 1992
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
27,965
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Waterman Ave over Twin Warm Creek is a steel stringer/multi-beam or girder carrying Waterman Ave over Twin Warm Creek in San Bernardino County, California. It was built in 1960 and reconstructed in 1992, so it is 65 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 27,965 vehicles a day, roughly 5% of them trucks, projected to reach 34,345 by 2043. The structure is 90 ft (27.4 m) long and 97 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWaterman Ave
CrossesTwin Warm Creek
Location2.1 MI North of I-10
RouteCity Street 0
CountySan Bernardino County
StateCalifornia
Coordinates34.09395, -117.27859
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span87 ft (26.5 m)
Deck width97 ft (29.6 m)
Roadway width85 ft (25.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,965 (2016)
Projected traffic34,345 by 2043
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Waterman Ave over Twin Warm Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1992.

What condition is Waterman 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 November 2023.

How much traffic does Waterman Ave over Twin Warm Creek carry?

About 27,965 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Waterman Ave over Twin Warm Creek?

The structure is 90 ft (27.4 m) long with a longest span of 87 ft (26.5 m) and a deck 97 ft wide.

Who owns Waterman Ave over Twin Warm Creek?

It is owned by the City or Municipal Highway Agency.