US Bridges

I Street over Tributary of Potomac Riv

Fair

Fairfax County, Virginia · 00.07FR.1501/00.07TO1503 · Structure no. 000000000006939

Built
1984
41 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
20 ft
3 main spans
Daily traffic
209
2016 count
Owner
State
State Highway Agency

About this bridge

I Street over Tributary of Potomac Riv is a steel culvert carrying I Street over Tributary of Potomac Riv in Fairfax County, Virginia. It was built in 1984, so it is 41 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 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 209 vehicles a day, projected to reach 239 by 2045. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI Street
CrossesTributary of Potomac Riv
Location00.07FR.1501/00.07TO1503
RouteCounty Highway 1512
CountyFairfax County
StateVirginia
Coordinates38.77653, -77.05553
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 7 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span5 ft (1.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2016)
Projected traffic239 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 I Street over Tributary of Potomac Riv built?

It was built in 1984, making it 41 years old in 2025.

What condition is I Street over Tributary of Potomac Riv 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 August 2024.

How much traffic does I Street over Tributary of Potomac Riv carry?

About 209 vehicles per day (2016 count).

How long is I Street over Tributary of Potomac Riv?

The structure is 20 ft (6.1 m) long with a longest span of 5 ft (1.6 m).

Who owns I Street over Tributary of Potomac Riv?

It is owned by the State Highway Agency.