US Bridges

Old Chesterbrook R over Pimmit Run

Good

Fairfax County, Virginia · 00.08FR1809/00.22TO3442 · Structure no. 000000000006846

Built
1978
47 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
1,333
2022 count
Owner
State
State Highway Agency

About this bridge

Old Chesterbrook R over Pimmit Run is a steel stringer/multi-beam or girder carrying Old Chesterbrook R over Pimmit Run in Fairfax County, Virginia. It was built in 1978, so it is 47 years old, younger 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 1,333 vehicles a day, projected to reach 1,486 by 2042. The structure is 32 ft (9.9 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Chesterbrook R
CrossesPimmit Run
Location00.08FR1809/00.22TO3442
RouteCounty Highway 690
Coordinates38.92508, -77.17282
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating60.8 US tons
Inventory rating46.8 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.9 m)
Longest span29 ft (8.8 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,333 (2022)
Projected traffic1,486 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$220 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Chesterbrook R over Pimmit Run built?

It was built in 1978, making it 47 years old in 2025.

What condition is Old Chesterbrook R over Pimmit Run 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 August 2024.

How much traffic does Old Chesterbrook R over Pimmit Run carry?

About 1,333 vehicles per day (2022 count).

How long is Old Chesterbrook R over Pimmit Run?

The structure is 32 ft (9.9 m) long with a longest span of 29 ft (8.8 m) and a deck 35 ft wide.

Who owns Old Chesterbrook R over Pimmit Run?

It is owned by the State Highway Agency.