US Bridges

RTE 4 over Mill Creek

Fair

Rensselaer County, New York · 0.4 MI N JCT Rts 4 & 9 · Structure no. 000000001000920

Built
1930
95 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
13,902
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 4 over Mill Creek is a concrete culvert carrying RTE 4 over Mill Creek in Rensselaer County, New York. It was built in 1930, so it is 95 years old, older than the New York average of 53 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 13,902 vehicles a day, roughly 4% of them trucks, projected to reach 13,967 by 2041. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 4
CrossesMill Creek
Location0.4 MI N JCT Rts 4 & 9
RouteU.S. Route 4
Coordinates42.60393, -73.70713
Functional classUrban Other Principal Arterial

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,902 (2021)
Projected traffic13,967 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$899,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 4 over Mill Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is RTE 4 over Mill Creek 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 March 2024.

How much traffic does RTE 4 over Mill Creek carry?

About 13,902 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is RTE 4 over Mill Creek?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m).

Who owns RTE 4 over Mill Creek?

It is owned by the State Highway Agency.