US Bridges

Catharpin Rd. over Ni River

Fair

Spotsylvania County, Virginia · 1.8M RTE610-0.5M RTE624 · Structure no. 000000000018002

Built
1966
59 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
3,916
2022 count
Owner
State
State Highway Agency

About this bridge

Catharpin Rd. over Ni River is a prestressed concrete stringer/multi-beam or girder carrying Catharpin Rd. over Ni River in Spotsylvania County, Virginia. It was built in 1966, so it is 59 years old, older 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 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 3,916 vehicles a day, projected to reach 4,366 by 2045. The structure is 64 ft (19.5 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCatharpin Rd.
CrossesNi River
Location1.8M RTE610-0.5M RTE624
RouteCounty Highway 612
Coordinates38.26427, -77.62985
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating60.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length64 ft (19.5 m)
Longest span62 ft (18.9 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,916 (2022)
Projected traffic4,366 by 2045
Trucks0%
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

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 Catharpin Rd. over Ni River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Catharpin Rd. over Ni River 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 September 2023.

How much traffic does Catharpin Rd. over Ni River carry?

About 3,916 vehicles per day (2022 count).

How long is Catharpin Rd. over Ni River?

The structure is 64 ft (19.5 m) long with a longest span of 62 ft (18.9 m) and a deck 31 ft wide.

Who owns Catharpin Rd. over Ni River?

It is owned by the State Highway Agency.