US Bridges

Lara Rd. over Mcmahons Swamp

Fair

Lancaster County, Virginia · 0.6M RTE201-1.5M RTE617 · Structure no. 000000000026831

Built
2001
24 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete Continuous
Length
102 ft
2 main spans
Daily traffic
466
2022 count
Owner
State
State Highway Agency

About this bridge

Lara Rd. over Mcmahons Swamp is a prestressed concrete continuous slab carrying Lara Rd. over Mcmahons Swamp in Lancaster County, Virginia. It was built in 2001, so it is 24 years old, younger than the Virginia average of 50.7 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 466 vehicles a day, projected to reach 520 by 2045. The structure is 102 ft (31.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLara Rd.
CrossesMcmahons Swamp
Location0.6M RTE201-1.5M RTE617
RouteCounty Highway 600
CountyLancaster County
StateVirginia
Coordinates37.7931, -76.49072
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length102 ft (31.1 m)
Longest span47 ft (14.3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic466 (2022)
Projected traffic520 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Lara Rd. over Mcmahons Swamp built?

It was built in 2001, making it 24 years old in 2025.

What condition is Lara Rd. over Mcmahons Swamp 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 April 2023.

How much traffic does Lara Rd. over Mcmahons Swamp carry?

About 466 vehicles per day (2022 count).

How long is Lara Rd. over Mcmahons Swamp?

The structure is 102 ft (31.1 m) long with a longest span of 47 ft (14.3 m) and a deck 24 ft wide.

Who owns Lara Rd. over Mcmahons Swamp?

It is owned by the State Highway Agency.