US Bridges

Grassland Drive over North Horse Creek

Good

Solano County, California · South of New Horizons Way · Structure no. 23C0265

Built
2003
22 years old
Condition
Good
inspected October 2024
Type
Arch - Deck
Concrete
Length
30 ft
1 main span
Daily traffic
200
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grassland Drive over North Horse Creek is a concrete arch - deck carrying Grassland Drive over North Horse Creek in Solano County, California. It was built in 2003, so it is 22 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 411 by 2042. The structure is 30 ft (9.1 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesGrassland Drive
CrossesNorth Horse Creek
LocationSouth of New Horizons Way
RouteCity Street 0
Coordinates38.38659, -121.94543
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
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width59 ft (18 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2010)
Projected traffic411 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Grassland Drive over North Horse Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Grassland Drive over North Horse 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 October 2024.

How much traffic does Grassland Drive over North Horse Creek carry?

About 200 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Grassland Drive over North Horse Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 59 ft wide.

Who owns Grassland Drive over North Horse Creek?

It is owned by the City or Municipal Highway Agency.