US Bridges

SR 29 over Center Br St. Marys Riv

Fair

Auglaize County, Ohio · 2.11 MI N of Jct. SR219 · Structure no. 0600121

Built
1954
71 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
1,553
2015 count
Owner
State
State Highway Agency

About this bridge

SR 29 over Center Br St. Marys Riv is a concrete continuous slab carrying SR 29 over Center Br St. Marys Riv in Auglaize County, Ohio. It was built in 1954, so it is 71 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 1,553 vehicles a day, roughly 7% of them trucks, projected to reach 2,156 by 2035. The structure is 88 ft (26.8 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 29
CrossesCenter Br St. Marys Riv
Location2.11 MI N of Jct. SR219
RouteState Highway 29
CountyAuglaize County
StateOhio
Coordinates40.5217, -84.33274
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length88 ft (26.8 m)
Longest span32 ft (9.8 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,553 (2015)
Projected traffic2,156 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 29 over Center Br St. Marys Riv built?

It was built in 1954, making it 71 years old in 2025.

What condition is SR 29 over Center Br St. Marys Riv 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 April 2024.

How much traffic does SR 29 over Center Br St. Marys Riv carry?

About 1,553 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR 29 over Center Br St. Marys Riv?

The structure is 88 ft (26.8 m) long with a longest span of 32 ft (9.8 m) and a deck 36 ft wide.

Who owns SR 29 over Center Br St. Marys Riv?

It is owned by the State Highway Agency.