US Bridges

Pennsylvania UP RR over Redwood Creek

Good

San Mateo County, California · West of Maple ST · Structure no. 35C0129

Built
1989
36 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
46 ft
2 main spans
Daily traffic
100
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pennsylvania UP RR over Redwood Creek is a concrete continuous culvert carrying Pennsylvania UP RR over Redwood Creek in San Mateo County, California. It was built in 1989, so it is 36 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 261 by 2042. The structure is 46 ft (14 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPennsylvania UP RR
CrossesRedwood Creek
LocationWest of Maple ST
RouteCity Street 0
CountySan Mateo County
StateCalifornia
Coordinates37.48267, -122.22635
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length46 ft (14 m)
Longest span23 ft (7 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic261 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesWaterway
Detour if closed1.2 mi (2 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 Pennsylvania UP RR over Redwood Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Pennsylvania UP RR over Redwood Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Pennsylvania UP RR over Redwood Creek carry?

About 100 vehicles per day (2018 count).

How long is Pennsylvania UP RR over Redwood Creek?

The structure is 46 ft (14 m) long with a longest span of 23 ft (7 m) and a deck 21 ft wide.

Who owns Pennsylvania UP RR over Redwood Creek?

It is owned by the City or Municipal Highway Agency.