US Bridges

Ruth Road over Rock Falls Creek

Good

Huron County, Michigan · Sec. 29-30 Sand Beach Twp · Structure no. 000000000003553

Built
1925
100 years old, rebuilt 1995
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
1,030
2009 count
Owner
County
County Highway Agency

About this bridge

Ruth Road over Rock Falls Creek is a prestressed concrete tee beam carrying Ruth Road over Rock Falls Creek in Huron County, Michigan. It was built in 1925 and reconstructed in 1995, so it is 100 years old, older than the Michigan average of 48.3 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 1,030 vehicles a day, projected to reach 1,860 by 2029. The structure is 35 ft (10.6 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRuth Road
CrossesRock Falls Creek
LocationSec. 29-30 Sand Beach Twp
RouteCounty Highway 3287
CountyHuron County
StateMichigan
Coordinates43.80213, -82.74201
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 alignment7: Better than present minimum criteria
Operating rating78.5 US tons
Inventory rating47 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span33 ft (10.2 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,030 (2009)
Projected traffic1,860 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Ruth Road over Rock Falls Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1995.

What condition is Ruth Road over Rock Falls Creek 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 October 2023.

How much traffic does Ruth Road over Rock Falls Creek carry?

About 1,030 vehicles per day (2009 count).

How long is Ruth Road over Rock Falls Creek?

The structure is 35 ft (10.6 m) long with a longest span of 33 ft (10.2 m) and a deck 36 ft wide.

Who owns Ruth Road over Rock Falls Creek?

It is owned by the County Highway Agency.