US Bridges

Collinsville RD over Little Isaac Creek

Good

Frederick County, Virginia · 1.35 to 745 - 0.70 to 770 · Structure no. 000000000008287

Built
1963
62 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
300
2020 count
Owner
State
State Highway Agency

About this bridge

Collinsville RD over Little Isaac Creek is a prestressed concrete slab carrying Collinsville RD over Little Isaac Creek in Frederick County, Virginia. It was built in 1963, so it is 62 years old, older than the Virginia average of 50.7 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.

It carries about 300 vehicles a day, projected to reach 338 by 2042. The structure is 43 ft (13.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCollinsville RD
CrossesLittle Isaac Creek
Location1.35 to 745 - 0.70 to 770
RouteCounty Highway 693
Coordinates39.32886, -78.28652
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.3 US tons
Inventory rating52.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 15
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2020)
Projected traffic338 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$76 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Collinsville RD over Little Isaac Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Collinsville RD over Little Isaac 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 Collinsville RD over Little Isaac Creek carry?

About 300 vehicles per day (2020 count).

How long is Collinsville RD over Little Isaac Creek?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 27 ft wide.

Who owns Collinsville RD over Little Isaac Creek?

It is owned by the State Highway Agency.