US Bridges

L-1527/BRTNPRKBLVD over Sawmill Branch

Good

Berkeley County, South Carolina · Summerville · Structure no. 000000000010674

Built
2015
10 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
275
2023 count
Owner
County
County Highway Agency

About this bridge

L-1527/BRTNPRKBLVD over Sawmill Branch is a concrete culvert carrying L-1527/BRTNPRKBLVD over Sawmill Branch in Berkeley County, South Carolina. It was built in 2015, so it is 10 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 275 vehicles a day, roughly 5% of them trucks, projected to reach 352 by 2043. The structure is 36 ft (11.1 m) long and 150 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesL-1527/BRTNPRKBLVD
CrossesSawmill Branch
LocationSummerville
RouteCounty Highway 1527
CountyBerkeley County
StateSouth Carolina
Coordinates33.04111, -80.13917
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span12 ft (3.7 m)
Deck width150 ft (45.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2023)
Projected traffic352 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was L-1527/BRTNPRKBLVD over Sawmill Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is L-1527/BRTNPRKBLVD over Sawmill Branch 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 October 2023.

How much traffic does L-1527/BRTNPRKBLVD over Sawmill Branch carry?

About 275 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is L-1527/BRTNPRKBLVD over Sawmill Branch?

The structure is 36 ft (11.1 m) long with a longest span of 12 ft (3.7 m) and a deck 150 ft wide.

Who owns L-1527/BRTNPRKBLVD over Sawmill Branch?

It is owned by the County Highway Agency.