US Bridges

Heyman 29 over Heyman / CO Di 1200

Good

Huron County, Ohio · 0.1 MI S of Bismark Road · Structure no. 3935191

Built
1995
30 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
33 ft
1 main span
Daily traffic
324
2015 count
Owner
County
County Highway Agency

About this bridge

Heyman 29 over Heyman / CO Di 1200 is a concrete box beam or girders - multiple carrying Heyman 29 over Heyman / CO Di 1200 in Huron County, Ohio. It was built in 1995, so it is 30 years old, younger than the Ohio average of 47.3 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 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 33 ft (10.1 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHeyman 29
CrossesHeyman / CO Di 1200
Location0.1 MI S of Bismark Road
RouteCounty Highway T0029
StateOhio
Coordinates41.16357, -82.80627
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating67.9 US tons
Inventory rating39.2 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2015)
Projected traffic450 by 2035
Trucks7%
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 Heyman 29 over Heyman / CO Di 1200 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Heyman 29 over Heyman / CO Di 1200 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 April 2024.

How much traffic does Heyman 29 over Heyman / CO Di 1200 carry?

About 324 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Heyman 29 over Heyman / CO Di 1200?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Heyman 29 over Heyman / CO Di 1200?

It is owned by the County Highway Agency.