US Bridges

I-469 over Martin Ditch

Fair

Allen County, Indiana · 00.22 N US 30 · Structure no. 076145

Built
1990
35 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
29,526
2020 count
Owner
State
State Highway Agency

About this bridge

I-469 over Martin Ditch is a steel culvert carrying I-469 over Martin Ditch in Allen County, Indiana. It was built in 1990, so it is 35 years old, younger 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 29,526 vehicles a day, roughly 24% of them trucks, projected to reach 19,982 by 2030. The structure is 31 ft (9.4 m) long and 150 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-469
CrossesMartin Ditch
Location00.22 N US 30
RouteInterstate 469
CountyAllen County
StateIndiana
Coordinates41.06615, -84.98972
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span13 ft (4 m)
Deck width150 ft (45.7 m)
Roadway width150 ft (45.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,526 (2020)
Projected traffic19,982 by 2030
Trucks24%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-469 over Martin Ditch built?

It was built in 1990, making it 35 years old in 2025.

What condition is I-469 over Martin 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 May 2023.

How much traffic does I-469 over Martin Ditch carry?

About 29,526 vehicles per day (2020 count), of which roughly 24% are trucks.

How long is I-469 over Martin Ditch?

The structure is 31 ft (9.4 m) long with a longest span of 13 ft (4 m) and a deck 150 ft wide.

Who owns I-469 over Martin Ditch?

It is owned by the State Highway Agency.