US Bridges

Mayhew RD over ST Joseph River

Fair

Allen County, Indiana · 00.50 W ST Joe Road · Structure no. 0200072

Built
1988
37 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
296 ft
3 main spans
Daily traffic
13,550
2016 count
Owner
County
County Highway Agency

About this bridge

Mayhew RD over ST Joseph River is a prestressed concrete continuous stringer/multi-beam or girder carrying Mayhew RD over ST Joseph River in Allen County, Indiana. It was built in 1988, so it is 37 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 13,550 vehicles a day, roughly 5% of them trucks, projected to reach 21,025 by 2036. The structure is 296 ft (90.2 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesMayhew RD
CrossesST Joseph River
Location00.50 W ST Joe Road
RouteCounty Highway 255
CountyAllen County
StateIndiana
Coordinates41.16759, -85.07454
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.9 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length296 ft (90.2 m)
Longest span101 ft (30.7 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,550 (2016)
Projected traffic21,025 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Mayhew RD over ST Joseph River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Mayhew RD over ST Joseph River 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 2024.

How much traffic does Mayhew RD over ST Joseph River carry?

About 13,550 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Mayhew RD over ST Joseph River?

The structure is 296 ft (90.2 m) long with a longest span of 101 ft (30.7 m) and a deck 33 ft wide.

Who owns Mayhew RD over ST Joseph River?

It is owned by the County Highway Agency.