US Bridges

N Bay ST over Lone Star Canal

PoorPosted for load

Chambers County, Texas · 0.05 MI N of SH 61 · Structure no. 200360B00220001

Built
1950
75 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
77 ft
5 main spans
Daily traffic
314
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Bay ST over Lone Star Canal is a wood or timber stringer/multi-beam or girder carrying N Bay ST over Lone Star Canal in Chambers County, Texas. It was built in 1950, so it is 75 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 314 vehicles a day, projected to reach 460 by 2035. The structure is 77 ft (23.5 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Bay ST
CrossesLone Star Canal
Location0.05 MI N of SH 61
RouteCity Street 0
StateTexas
Coordinates29.77355, -94.67992
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating22 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span16 ft (4.9 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic314 (2016)
Projected traffic460 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$153,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Bay ST over Lone Star Canal built?

It was built in 1950, making it 75 years old in 2025.

What condition is N Bay ST over Lone Star Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does N Bay ST over Lone Star Canal carry?

About 314 vehicles per day (2016 count).

How long is N Bay ST over Lone Star Canal?

The structure is 77 ft (23.5 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns N Bay ST over Lone Star Canal?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.