US Bridges

SH 60 over Bay City Irig Canal

Fair

Matagorda County, Texas · 0.40 MI N of FM 3156 · Structure no. 131580024102002

Built
1932
93 years old, rebuilt 1991
Condition
Fair
inspected December 2022
Type
Culvert
Concrete
Length
40 ft
6 main spans
Daily traffic
5,253
2020 count
Owner
State
State Highway Agency

About this bridge

SH 60 over Bay City Irig Canal is a concrete culvert carrying SH 60 over Bay City Irig Canal in Matagorda County, Texas. It was built in 1932 and reconstructed in 1991, so it is 93 years old, older than the Texas average of 44.4 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 5,253 vehicles a day, roughly 9% of them trucks, projected to reach 6,510 by 2033. The structure is 40 ft (12.2 m) long and 80 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesSH 60
CrossesBay City Irig Canal
Location0.40 MI N of FM 3156
RouteState Highway 60
CountyMatagorda County
StateTexas
Coordinates29.02255, -95.9745
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length40 ft (12.2 m)
Longest span4 ft (1.2 m)
Deck width80 ft (24.5 m)
Roadway width77 ft (23.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,253 (2020)
Projected traffic6,510 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 60 over Bay City Irig Canal built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1991.

What condition is SH 60 over Bay City Irig Canal 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 2022.

How much traffic does SH 60 over Bay City Irig Canal carry?

About 5,253 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 60 over Bay City Irig Canal?

The structure is 40 ft (12.2 m) long with a longest span of 4 ft (1.2 m) and a deck 80 ft wide.

Who owns SH 60 over Bay City Irig Canal?

It is owned by the State Highway Agency.