US Bridges

Nj 23 over Pequ Riv RR Hmbg Tpk SB

Poor

Morris County, New Jersey · 4.13 MI N of I-287 · Structure no. 1405156

Built
1934
91 years old
Condition
Poor
inspected March 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
513 ft
6 main spans
Daily traffic
63,188
2023 count
Owner
State
State Highway Agency

About this bridge

Nj 23 over Pequ Riv RR Hmbg Tpk SB is a steel continuous girder and floorbeam system carrying Nj 23 over Pequ Riv RR Hmbg Tpk SB in Morris County, New Jersey. It was built in 1934, so it is 91 years old, older than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 63,188 vehicles a day, roughly 4% of them trucks, projected to reach 75,825 by 2043. The structure is 513 ft (156.4 m) long and 59 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNj 23
CrossesPequ Riv RR Hmbg Tpk SB
Location4.13 MI N of I-287
RouteState Highway 23
Coordinates41.01122, -74.36931
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadH 20
Structure length513 ft (156.4 m)
Longest span75 ft (22.9 m)
Deck width59 ft (18.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,188 (2023)
Projected traffic75,825 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$9 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 23 over Pequ Riv RR Hmbg Tpk SB built?

It was built in 1934, making it 91 years old in 2025.

What condition is Nj 23 over Pequ Riv RR Hmbg Tpk SB in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does Nj 23 over Pequ Riv RR Hmbg Tpk SB carry?

About 63,188 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj 23 over Pequ Riv RR Hmbg Tpk SB?

The structure is 513 ft (156.4 m) long with a longest span of 75 ft (22.9 m) and a deck 59 ft wide.

Who owns Nj 23 over Pequ Riv RR Hmbg Tpk SB?

It is owned by the State Highway Agency.