US Bridges

Ryan RD over A Martin Drain

Fair

Allen County, Indiana · 00.60 N US 30 · Structure no. 0200133

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
859
2018 count
Owner
County
County Highway Agency

About this bridge

Ryan RD over A Martin Drain is a prestressed concrete box beam or girders - multiple carrying Ryan RD over A Martin Drain in Allen County, Indiana. It was built in 1972, so it is 53 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 859 vehicles a day, roughly 20% of them trucks, projected to reach 1,283 by 2038. The structure is 27 ft (8.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRyan RD
CrossesA Martin Drain
Location00.60 N US 30
RouteCounty Highway 91
StateIndiana
Coordinates41.06016, -84.96181
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.2 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic859 (2018)
Projected traffic1,283 by 2038
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Ryan RD over A Martin Drain built?

It was built in 1972, making it 53 years old in 2025.

What condition is Ryan RD over A Martin Drain 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 June 2024.

How much traffic does Ryan RD over A Martin Drain carry?

About 859 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is Ryan RD over A Martin Drain?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.2 m) and a deck 32 ft wide.

Who owns Ryan RD over A Martin Drain?

It is owned by the County Highway Agency.