US Bridges

Mottsville Lane over Brockliss Slough

Fair

Douglas County, Nevada · Southwest of Minden · Structure no. B1330

Built
1957
68 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
3,800
2021 count
Owner
County
County Highway Agency

About this bridge

Mottsville Lane over Brockliss Slough is a concrete slab carrying Mottsville Lane over Brockliss Slough in Douglas County, Nevada. It was built in 1957, so it is 68 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 3,800 vehicles a day, roughly 3% of them trucks, projected to reach 5,400 by 2040. The structure is 36 ft (11 m) long and 27 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesMottsville Lane
CrossesBrockliss Slough
LocationSouthwest of Minden
RouteCounty Highway 0
CountyDouglas County
StateNevada
Coordinates38.93218, -119.80724
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2021)
Projected traffic5,400 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Mottsville Lane over Brockliss Slough built?

It was built in 1957, making it 68 years old in 2025.

What condition is Mottsville Lane over Brockliss Slough 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 January 2023.

How much traffic does Mottsville Lane over Brockliss Slough carry?

About 3,800 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Mottsville Lane over Brockliss Slough?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns Mottsville Lane over Brockliss Slough?

It is owned by the County Highway Agency.