US Bridges

Peatman Dr. over Wetlands

Good

Napa County, California · S/O Saratoga Dr. · Structure no. 21C0149

Built
2017
8 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
57 ft
4 main spans
Daily traffic
1,800
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Peatman Dr. over Wetlands is a concrete continuous culvert carrying Peatman Dr. over Wetlands in Napa County, California. It was built in 2017, so it is 8 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 1,800 vehicles a day, roughly 1% of them trucks, projected to reach 2,448 by 2046. The structure is 57 ft (17.5 m) long and 58 ft wide.

CarriesPeatman Dr.
CrossesWetlands
LocationS/O Saratoga Dr.
RouteCity Street 0
Coordinates38.28997, -122.27758
Functional classUrban Collector

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 inspectionFebruary 2024
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length57 ft (17.5 m)
Longest span10 ft (3.2 m)
Deck width58 ft (17.8 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2021)
Projected traffic2,448 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Peatman Dr. over Wetlands built?

It was built in 2017, making it 8 years old in 2025.

What condition is Peatman Dr. over Wetlands 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 February 2024.

How much traffic does Peatman Dr. over Wetlands carry?

About 1,800 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Peatman Dr. over Wetlands?

The structure is 57 ft (17.5 m) long with a longest span of 10 ft (3.2 m) and a deck 58 ft wide.

Who owns Peatman Dr. over Wetlands?

It is owned by the City or Municipal Highway Agency.