US Bridges

Mace Blvd over South Fork Putah Creek

Good

Solano County, California · 1.7 MI N Tremont RD · Structure no. 23C0026

Built
1949
76 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
483 ft
16 main spans
Daily traffic
1,279
2011 count
Owner
County
County Highway Agency

About this bridge

Mace Blvd over South Fork Putah Creek is a concrete continuous slab carrying Mace Blvd over South Fork Putah Creek in Solano County, California. It was built in 1949, so it is 76 years old, older 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 1,279 vehicles a day, roughly 10% of them trucks, projected to reach 3,381 by 2041. The structure is 483 ft (147.2 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMace Blvd
CrossesSouth Fork Putah Creek
Location1.7 MI N Tremont RD
RouteCounty Highway 0
Coordinates38.51797, -121.69518
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating54.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans16
Design loadHS 20
Structure length483 ft (147.2 m)
Longest span31 ft (9.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,279 (2011)
Projected traffic3,381 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mace Blvd over South Fork Putah Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is Mace Blvd over South Fork Putah 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 March 2023.

How much traffic does Mace Blvd over South Fork Putah Creek carry?

About 1,279 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Mace Blvd over South Fork Putah Creek?

The structure is 483 ft (147.2 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.

Who owns Mace Blvd over South Fork Putah Creek?

It is owned by the County Highway Agency.