US Bridges

Dogtown Road over Maxwell Creek

GoodPosted for load

Mariposa County, California · 1.6 MI E Greely Hill R · Structure no. 40C0038

Built
1958
67 years old
Condition
Good
inspected June 2024
Type
Truss - Thru
Steel
Length
67 ft
1 main span
Daily traffic
120
2004 count
Owner
County
County Highway Agency

About this bridge

Dogtown Road over Maxwell Creek is a steel truss - thru carrying Dogtown Road over Maxwell Creek in Mariposa County, California. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 120 vehicles a day, roughly 3% of them trucks, projected to reach 425 by 2042. The structure is 67 ft (20.4 m) long and 16 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesDogtown Road
CrossesMaxwell Creek
Location1.6 MI E Greely Hill R
RouteCounty Highway 0
Coordinates37.70971, -120.17397
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating11.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 10
Structure length67 ft (20.4 m)
Longest span63 ft (19.2 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2004)
Projected traffic425 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Dogtown Road over Maxwell Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Dogtown Road over Maxwell 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 June 2024.

How much traffic does Dogtown Road over Maxwell Creek carry?

About 120 vehicles per day (2004 count), of which roughly 3% are trucks.

How long is Dogtown Road over Maxwell Creek?

The structure is 67 ft (20.4 m) long with a longest span of 63 ft (19.2 m) and a deck 16 ft wide.

Who owns Dogtown Road over Maxwell Creek?

It is owned by the County Highway Agency.