US Bridges

Pittsford Road over Bird Creek

FairPosted for load

Hillsdale County, Michigan · 0.4 MI N of Hartley RD · Structure no. 000000000003308

Built
1951
74 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
353
2013 count
Owner
County
County Highway Agency

About this bridge

Pittsford Road over Bird Creek is a steel stringer/multi-beam or girder carrying Pittsford Road over Bird Creek in Hillsdale County, Michigan. It was built in 1951, so it is 74 years old, older than the Michigan average of 48.3 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. Its operating status is: posted for load restriction.

It carries about 353 vehicles a day, projected to reach 579 by 2038. The structure is 35 ft (10.6 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesPittsford Road
CrossesBird Creek
Location0.4 MI N of Hartley RD
RouteCounty Highway 3075
CountyHillsdale County
StateMichigan
Coordinates41.74368, -84.47599
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.3 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length35 ft (10.6 m)
Longest span34 ft (10.3 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic353 (2013)
Projected traffic579 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Pittsford Road over Bird Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is Pittsford Road over Bird 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 November 2024.

How much traffic does Pittsford Road over Bird Creek carry?

About 353 vehicles per day (2013 count).

How long is Pittsford Road over Bird Creek?

The structure is 35 ft (10.6 m) long with a longest span of 34 ft (10.3 m) and a deck 38 ft wide.

Who owns Pittsford Road over Bird Creek?

It is owned by the County Highway Agency.