US Bridges

SH 35 NB over Jamison Slough

Fair

Brazoria County, Texas · 1.00 MI W of SH 288 · Structure no. 120200017901045

Built
1953
72 years old, rebuilt 2004
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
350 ft
14 main spans
Daily traffic
7,726
2023 count
Owner
State
State Highway Agency

About this bridge

SH 35 NB over Jamison Slough is a concrete continuous slab carrying SH 35 NB over Jamison Slough in Brazoria County, Texas. It was built in 1953 and reconstructed in 2004, so it is 72 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 5 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 7,726 vehicles a day, roughly 9% of them trucks, projected to reach 6,700 by 2033. The structure is 350 ft (106.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 35 NB
CrossesJamison Slough
Location1.00 MI W of SH 288
RouteState Highway 35
CountyBrazoria County
StateTexas
Coordinates29.1595, -95.46898
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadOther
Structure length350 ft (106.7 m)
Longest span25 ft (7.6 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,726 (2023)
Projected traffic6,700 by 2033
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 35 NB over Jamison Slough built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2004.

What condition is SH 35 NB over Jamison Slough 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 September 2024.

How much traffic does SH 35 NB over Jamison Slough carry?

About 7,726 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SH 35 NB over Jamison Slough?

The structure is 350 ft (106.7 m) long with a longest span of 25 ft (7.6 m) and a deck 47 ft wide.

Who owns SH 35 NB over Jamison Slough?

It is owned by the State Highway Agency.