US Bridges

US 30 WB over Seegar Ditch

Fair

Allen County, Indiana · 02.66 W US 33 · Structure no. 008710

Built
1960
65 years old, rebuilt 2001
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
11,505
2021 count
Owner
State
State Highway Agency

About this bridge

US 30 WB over Seegar Ditch is a concrete continuous slab carrying US 30 WB over Seegar Ditch in Allen County, Indiana. It was built in 1960 and reconstructed in 2001, so it is 65 years old, older than the Indiana average of 46.6 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 11,505 vehicles a day, roughly 26% of them trucks, projected to reach 16,826 by 2032. The structure is 101 ft (30.7 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 30 WB
CrossesSeegar Ditch
Location02.66 W US 33
RouteU.S. Route 30
CountyAllen County
StateIndiana
Coordinates41.1254, -85.24739
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length101 ft (30.7 m)
Longest span32 ft (9.9 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,505 (2021)
Projected traffic16,826 by 2032
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US 30 WB over Seegar Ditch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is US 30 WB over Seegar Ditch 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 December 2023.

How much traffic does US 30 WB over Seegar Ditch carry?

About 11,505 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is US 30 WB over Seegar Ditch?

The structure is 101 ft (30.7 m) long with a longest span of 32 ft (9.9 m) and a deck 42 ft wide.

Who owns US 30 WB over Seegar Ditch?

It is owned by the State Highway Agency.