US Bridges

Boulder Dell Road over Bible Rock Brook

Good

Middlesex County, Connecticut · 100 Ft E of Route 154 · Structure no. 05406

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
57
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Boulder Dell Road over Bible Rock Brook is a concrete culvert carrying Boulder Dell Road over Bible Rock Brook in Middlesex County, Connecticut. It was built in 1986, so it is 39 years old, younger than the Connecticut average of 56.7 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 57 vehicles a day, roughly 2% of them trucks, projected to reach 85 by 2043. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesBoulder Dell Road
CrossesBible Rock Brook
Location100 Ft E of Route 154
RouteCity Street 0
CountyMiddlesex County
StateConnecticut
Coordinates41.50421, -72.57351
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2023)
Projected traffic85 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Boulder Dell Road over Bible Rock Brook built?

It was built in 1986, making it 39 years old in 2025.

What condition is Boulder Dell Road over Bible Rock Brook 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 2023.

How much traffic does Boulder Dell Road over Bible Rock Brook carry?

About 57 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Boulder Dell Road over Bible Rock Brook?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns Boulder Dell Road over Bible Rock Brook?

It is owned by the Town or Township Highway Agency.