US Bridges

SH 100 over Shrimp Channel

Good

Cameron County, Texas · 0.85 MI E of SH 48 · Structure no. 210310033102006

Built
1997
28 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
23,061
2020 count
Owner
State
State Highway Agency

About this bridge

SH 100 over Shrimp Channel is a prestressed concrete box beam or girders - multiple carrying SH 100 over Shrimp Channel in Cameron County, Texas. It was built in 1997, so it is 28 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23,061 vehicles a day, roughly 2% of them trucks, projected to reach 33,790 by 2033. The structure is 75 ft (22.9 m) long and 85 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSH 100
CrossesShrimp Channel
Location0.85 MI E of SH 48
RouteState Highway 100
CountyCameron County
StateTexas
Coordinates26.07334, -97.21437
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span75 ft (22.9 m)
Deck width85 ft (25.9 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,061 (2020)
Projected traffic33,790 by 2033
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SH 100 over Shrimp Channel built?

It was built in 1997, making it 28 years old in 2025.

What condition is SH 100 over Shrimp Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does SH 100 over Shrimp Channel carry?

About 23,061 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 100 over Shrimp Channel?

The structure is 75 ft (22.9 m) long with a longest span of 75 ft (22.9 m) and a deck 85 ft wide.

Who owns SH 100 over Shrimp Channel?

It is owned by the State Highway Agency.