US Bridges

Dogtown Road over Maxwell Creek

Fair

Mariposa County, California · 0.2 MI E/O Greeley Hill R · Structure no. 40C0039

Built
1944
81 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
42 ft
2 main spans
Daily traffic
120
2004 count
Owner
County
County Highway Agency

About this bridge

Dogtown Road over Maxwell Creek is a wood or timber stringer/multi-beam or girder carrying Dogtown Road over Maxwell Creek in Mariposa County, California. It was built in 1944, so it is 81 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 120 vehicles a day, roughly 3% of them trucks, projected to reach 431 by 2046. The structure is 42 ft (12.8 m) long and 17 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesDogtown Road
CrossesMaxwell Creek
Location0.2 MI E/O Greeley Hill R
RouteCounty Highway 0
CountyMariposa County
StateCalifornia
Coordinates37.71631, -120.18969
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.5 US tons
Inventory rating20.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span19 ft (5.8 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2004)
Projected traffic431 by 2046
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 1944, making it 81 years old in 2025.

What condition is Dogtown Road over Maxwell Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. 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 42 ft (12.8 m) long with a longest span of 19 ft (5.8 m) and a deck 17 ft wide.

Who owns Dogtown Road over Maxwell Creek?

It is owned by the County Highway Agency.