US Bridges

Section Line 30 over Sec LN 30 / Slate Run

PoorPosted for load

Huron County, Ohio · 0.2 MI N of Old Military · Structure no. 3940624

Built
1960
65 years old, rebuilt 1988
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
57 ft
1 main span
Daily traffic
1,804
2015 count
Owner
County
County Highway Agency

About this bridge

Section Line 30 over Sec LN 30 / Slate Run is a steel truss - thru carrying Section Line 30 over Sec LN 30 / Slate Run in Huron County, Ohio. It was built in 1960 and reconstructed in 1988, so it is 65 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,804 vehicles a day, roughly 7% of them trucks, projected to reach 2,504 by 2035. The structure is 57 ft (17.4 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSection Line 30
CrossesSec LN 30 / Slate Run
Location0.2 MI N of Old Military
RouteCounty Highway C0030
StateOhio
Coordinates41.1333, -82.78571
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating15.3 US tons
Inventory rating8.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span53 ft (16.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,804 (2015)
Projected traffic2,504 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Section Line 30 over Sec LN 30 / Slate Run built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1988.

What condition is Section Line 30 over Sec LN 30 / Slate Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Section Line 30 over Sec LN 30 / Slate Run carry?

About 1,804 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Section Line 30 over Sec LN 30 / Slate Run?

The structure is 57 ft (17.4 m) long with a longest span of 53 ft (16.2 m) and a deck 27 ft wide.

Who owns Section Line 30 over Sec LN 30 / Slate Run?

It is owned by the County Highway Agency.